“Screen Captured” message doubled/duplicated on my screen - without addons and across computers

WoW Classic WoW Classic Bug Report
1

Hi,
I have searched for a solution to no avail. Whenever I take a screenshot ingame, I get two “Screen Captured” messages on my UI. This text never appears in my screenshot folder, and as far as I can tell all of my screenshots are normal, however there is always a duplicate message slightly on top of each other whenever I take a screenshot. The text even has different frame strata(?).
I have tried disabling addons, restarting my game, turning off all other apps/programs (Discord, TSM, Battle.net), alternating between a desktop PC and a laptop, and it still persists. I do not have sticky keys on.

Running /run ActionStatus:UnregisterEvent("SCREENSHOT_SUCCEEDED") does remove the one in the background but the one in the foreground still persists.

This occurs on the season of discovery/anniversary/classic client. It does not happen in war within/retail. I don’t know about cataclysm client.

https://imgur.com/a/ewEy0OZ

2

I haven’t taken screenshots but i noticed this with using items. I click once on my hearthstone and get a message saying I can’t use that item right now (but it’s already casting) as if I had clicked it twice. It happens every single time.

edit: also only in Classic not on Retail.