Disable all addons except the two called "ElvUI" and "ElvUI Config". Do you still experience the issue now?: Yes
Disable all addons and use the default UI to make sure it is not an issue with the WoW client itself. Do you still experience the issue?: I didn´t check yet
Check for lua errors by using the command "/luaerror on" without quotes. Did you get an error or do you still experience the issue?: I use "/luaerror on", but don´t see and historic of lua error across the time, instead i read sometimes "Interface action failed because of an addon" on chatbox
Btw sorry but my english is a little bad :S
If you received an error then post it below (use the 'code' bbcode):
I don´t know how to check this
Please explain the issue you're having with as much detail as possible. Describe the exact steps we need to take in order to reproduce the issue.:
The ui sometimes and without doing something special (raid, etc...), start to blink on certain areas (chatboxes, action bars or buttons of action bars, azerite bar, etc).
The duration is few seconds, then disappear the issue and ui is ok.
Today i check without any addon activated and the issue persist (only elvui).
Do you have any other information which might help us track down the issue?:
Only one thing, but i don´t know if it helps. 1 of 10 times this error appears, the blinking is on background (all the area of game but not the ui).
We often get clues about the issue by looking at your entire UI, so please take some screenshots and add them here.: