[Sharlikran]

Any mod conflict you may have had won't interfere with the ZOS cache because that's part of the game. Keep things separate. You are observing that when you scan with TTC (which is not a vanilla operation), get guild history, open the inventory, reload the UI, and all the other steps then you feel the issue is caused by guild history. That's not how it works. Each situation is different. Lumping in several things together doesn't help you figure out what the issue is in the long run.

Also, make sure you don't use mods that are going to alter the Kiosk window when you use AGS. Authors may do it incorrectly. I don't use that mod and I don't know anything about it. You can already show the TTC price in inventory. Using vanilla or AGS you can configure the deal filter to use TTC. That's all configurable in the MM settings from the drowdown menus. If you go over the MM settings you can also have TTC, MM, Bonanza, all at the same time in the tooltip. (As text) So you really don't need other mods that alter the inventory price or the tooltip. As far as the Kiosk you don't really need anything other than AGS.