New items flashing in bags

I can’t figure out where to disable this. Is it a default game setting or an addon? I recently did a full UI reset and didn’t think to check this before redoing my UI. I don’t use many addons that would generally affect my bags, but here’s my list:

Advanced Interface Options
Announce Interrupts
Bag Sync
Battle Pet Breed ID
Battle Pet Count
Big Debuffs
Buff Overlay
Classic Quest Log
DBM
Dominos
Extra Quest Button
GTFO
Handy Notes
Leatrix Maps
Leatrix Plus
Omni CC
Pet Tracker
Prat
Quartz
Quest Plates
Rematch
Simple Item Levels
Tulla Range
Weak Auras
World Quests List
Xan Durability

I checked Bag Sync, Advanced Interface Options, Leatrix Plus and Dominos since they would appear to be the culprits, but none of them have a setting for new item glow.

It’s driving me crazy! Can anyone help please?

Thank you

Blizz changed the glow for new items in your bags to a flash. Goes away if you close and re-open your bags.

Yeah, or when you mouse over each item. I don’t want to use another addon just to disable that feature, so hopefully that’s added in at a future time. Thanks for the respone!