Regarding update Customer custom attributes from Platform vs via API on sngz0 and sngz5

Need help regarding updating Customer custom attributes. We are checking this on sngz0 and sngz5.
We are able to update Customer custom attributes from platform as shown in screenshot .
But when we try to update same value via platform API, using fdk-client-version = 1.4.3, it fails with following error "@PUT(“/service/platform/user/v1.0/company/{company_id}/application/{application_id}/user_attribute/definition/{attribute_def_id}/user/{user_id}”) " , "com.sdk.common.model.FDKServerResponseError: HTTP responseCode: 500 responseBody :{“message”:“Cannot set properties of undefined (setting ‘value’)”,“sentry”:“96d4c2fc191e4ccdad55270f1608c57c”} " for all custom fields which does not have any present while hitting this api. But if value is already present while hitting api custom fields value updates successfully.