Then I'm not sure why you are getting the error. I would need to know a lot more about the way your app is built to suggest any other fixes. That was the obvious one. There has to be something else going on in the form that is trying to interact with the connector that is causing the issue. I would start by looking at any of the spots in the form where you have modified the default formulas to adjust data.
Its not just if conditions you need to examine. Any function where you are changing the data could cause an issue. For example you mentioned something about a data picker and setting it for local timezone. How are you doing that? And anything else like that.
I'm also not sure what you mean by the "setting for the connector".
The other thing I will go back to is that you would have much more control if you do your submission using a Patch statement rather than submitting a form with bound data.
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Features releasing from October 2020 through March 2021