I have been trying to get some support for a few days with this but have kinda given up. I know this has been a bug for years but the new bank UI removed our ability to fix it ourselves by moving the summoned item such as shadow blades into an empty bank slot to delete them. With our workaround removed I wonder if the devs will finally address the bug itself now. Feels bad when your main character is barred from reincarnation for the foreseeable future with no help in sight. If any GM sees this and would be able to help by either deleting the items from the cache or by mentioning it to someone who does have that ability it would be greatly appreciated.
Tickets I made for the issue: #256193, #256560, and #257049