Integer field not saving decimal values

I have a strange issue where an integer form field will not save the decimal values when submitting the form.  I am able to type in a decimal figure (such as 1.34) but when submitting the form only the whole value (1) will save.

 

The field has been setup to show two decimal places.

 

Has anyone encountered this type of issue before or has any ideas for resolving the issue?

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