General Ledger Module - > Post Journals - Select in the top of window - > Joins - > Remove/Join tables -> "Remove Table join" option is disabled.

From Data Management > Export project > Filter

In my repro, I added joins for "Inventory on-hand by warehouse V2" -> "Warehouses" -> "Locations" initially. I then re-opened the filter query and added a join for "Archived warehouse inventory transaction". Since I haven't yet closed the query window after adding this join, I can remove the latest join, but not ones added previously since those have become part of the base query.

This can cause a huge business impact as there is no option to edit or even to preserve the change tracking after the deleting process and re import.

I request to review this configuration and allow customers to edit their configured joins.