A user is not able to move cards from one lane to another. When the user is attempting to move it, "an unknown error has occurred" error message is being thrown in the expanded card record and the card is not moving. But as a developer, having admin role I'm able to move the cards. But why are users not able to do so?
While impersonating the user I'm able to manually change and update the particular lane field choice by going into the records on the table. But not able to do the same through the vtb.
Where do I start? How can I investigate and debug this? "an unknown error has occurred" is just not telling enough about the problem.
It would be greatly appreciated if someone can provide some clues in getting started with debugging this error and fix the problem. TIA.
