Decimal field is throwing notification errors while saving records

Summary:

Content (required):

We have created some system attribute for incident object which are decimal data type as shown below

when ever we save the record with values without decimal(for e.g. 0, 1, etc. ) either through workspace or connect PHP. we get errors like below as notification and in error logs

we have recreated field but it is still not resolved. has anyone faced similar issue please let me know. Thanks in advance.

Version (include the version you are using, if applicable):

22A

Code Snippet (add any code snippets that support your topic, if applicable):