DamLink 16.x auto assign stops

We have customer that uses DAMLink 16.x to connect OTMM and Hybris. Currently they are using auto assign functionality, but when asset has more that 690 auto assign rows cron jobs stops, It does 690 assignment, but than in log file for hybris it has synchronization and update metadata erros and stops.

Has anyone seen such behaviour?

ERROR [OtmmRiaService2Impl] updateMetadataFieldValue(String,List<AssetMetadataElement>,List<AssetMetadataTabularFieldGroup>,List<RemoveDefinition>,OtmmSession):InboundJaxrsResponse{context=ClientResponse{method=PATCH, uri=http://CUSTOMER_OTMM_URL:11090/otmmapi/v4/assets/ASSET_UOID, status=400, reason=Bad Request}}; {"exception_body":{"http_response_code":400,"message":"An error occurred unmarshalling the parameter.","debug_message":"Unable to unmarshall parameter edited_asset of type application/json whose value is ","error_code":1000}}[m

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | [1;31mERROR [AssetSynchronizationImpl] saveAssignmentMetaData() call failed; assetName=asset.jpg; catalogMnemonic=CAT-S; productCode=xxxxxx; customKeyword=qa 062022; attributeId=wideThumbnail[m

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | [1;31mERROR [AssetSynchronizationImpl] Synchronization failed for item 'ProductModel (8806779027457@299)'.[m

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | com.opentext.hybris.otmmconnector.exceptions.OtmmRuntimeException: [04:31_20/06/22_64578383] MetaData Update failed for asset ASSET_UOID

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.sync.AssetSynchronizationImpl.updateMetaData(AssetSynchronizationImpl.java:661) ~[otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.sync.AssetSynchronizationImpl.performSyncProcess(AssetSynchronizationImpl.java:445) ~[otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.sync.AssetSynchronizationImpl.performAssignment(AssetSynchronizationImpl.java:232) [otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.sync.AssetSynchronizationImpl.perform(AssetSynchronizationImpl.java:271) [otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.service.impl.AssetAssignmentServiceImpl.runAssetSyncJob(AssetAssignmentServiceImpl.java:161) [otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.service.impl.AssetAssignmentServiceImpl.access$0(AssetAssignmentServiceImpl.java:154) [otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.service.impl.AssetAssignmentServiceImpl$1.execute(AssetAssignmentServiceImpl.java:211) [otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.service.impl.AssetAssignmentServiceImpl$1.execute(AssetAssignmentServiceImpl.java:1) [otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at de.hybris.platform.servicelayer.session.impl.DefaultSessionService.executeInLocalView(DefaultSessionService.java:131) [coreserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.service.impl.AssetAssignmentServiceImpl.doExportAndAssign(AssetAssignmentServiceImpl.java:207) [otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.service.impl.AssetAssignmentServiceImpl.performSynchronousAssetAssignment(AssetAssignmentServiceImpl.java:445) [otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) [spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:190) [spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157) [spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at org.springframework.aop.interceptor.AsyncExecutionInterceptor$1.call(AsyncExecutionInterceptor.java:115) [spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at java.lang.Thread.run(Thread.java:745) [?:1.8.0_121]

INFO   | jvm 1    | main    | 2022/06/20 04:31:05.564 | Caused by: com.opentext.hybris.otmmconnector.exceptions.OtmmRuntimeException: [04:31_20/06/22_64578383] InboundJaxrsResponse{context=ClientResponse{method=PATCH, uri=http://CUSTOMER_OTMM_URL:11090/otmmapi/v4/assets/ASSET_UOID, status=400, reason=Bad Request}}; {"exception_body":{"http_response_code":400,"message":"An error occurred unmarshalling the parameter.","debug_message":"Unable to unmarshall parameter edited_asset of type application/json whose value is ","error_code":1000}}

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.service.impl.OtmmRiaService2Impl.updateMetadataFieldValue(OtmmRiaService2Impl.java:1087) ~[otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.sun.proxy.$Proxy112.updateMetadataFieldValue(Unknown Source) ~[?:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.facade.impl.OTMMFacadeImpl.doAssociate(OTMMFacadeImpl.java:257) ~[otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at com.opentext.hybris.otmmconnector.facade.impl.AbstractOTMMFacadeImpl.associate(AbstractOTMMFacadeImpl.java:380) ~[otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.564 | at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at com.sun.proxy.$Proxy111.associate(Unknown Source) ~[?:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at com.opentext.hybris.otmmconnector.service.impl.OtmmMetaDataServiceImpl.updateAssignmentDataInOTMM(OtmmMetaDataServiceImpl.java:91) ~[otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at com.opentext.hybris.otmmconnector.service.impl.OtmmMetaDataServiceImpl.saveAssignmentMetaData(OtmmMetaDataServiceImpl.java:49) ~[otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_121]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:333) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) ~[spring-aop-4.3.21.RELEASE.jar:4.3.21.RELEASE]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at com.sun.proxy.$Proxy113.saveAssignmentMetaData(Unknown Source) ~[?:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | at com.opentext.hybris.otmmconnector.sync.AssetSynchronizationImpl.updateMetaData(AssetSynchronizationImpl.java:655) ~[otmmaddonserver.jar:?]

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | ... 20 more

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | [1;31mERROR [AssetAssignmentServiceImpl] runAssetSyncJob(String, String):[04:31_20/06/22_64578383] MetaData Update failed for asset ASSET_UOID[m

INFO  | jvm 1  | main  | 2022/06/20 04:31:05.565 | [1;31mERROR [AssetAssignmentServiceImpl] performSynchronousAssetAssignment(OTAssetVO,String,ItemModel,AssignmentInfo,OtmmSession):asset=asset.jpg; exception:[04:31_20/06/22_64578383] MetaData Update failed for asset ASSET_UOID[m