I have about 65 pages in my Vendor Buyback. 90% of items show Imminent but never seem to get emptied. Is there a known bug about this?

My guess is that with each TR, the items from the last 48 hours somehow get changed to a state of Imminent but never get permanently deleted. Currently I'm buy backing items to deconstruct, but stuff such
as potions, arrows, etc., I am buying them back and reselling in hope that the 48 hour time window will cleanse them from the buyback.

Unless there is a known bug with perhaps so many pages of buyback, maybe it just gets clogged up.

Thanks for replies.