VB Studio – Value Expression overwrites user input after submitting

I have a Position Name field that is defaulted using a Value Expression to pull the Job Name. This works as expected initially.

However, the issue occurs when a user manually edits the Position Name field:

• The user-entered value is saved during submission
• But when the transaction is opened in the approval step, the Position Name field shows the default Job Name again instead of the user’s input

It seems the Value Expression is overriding the user-entered value during the approval context.

Expected behavior:

• If the user edits the field, their value should be retained and visible in approval