I have Bitwarden, RES and uBlock Origin, plus Enhancer for Youtube.
My fix was
- disable "Block Ads" in Enhancer for Youtube
- add this to uBlock under "My Filters":
! from https://gadgetstouse.com/blog/2023/05/15/bypass-ad-blockers-not-allowed-on-youtube/
youtube.com##+js(set, yt.config_.openPopupConfig.supportedPopups.adBlockMessageViewModel, false)
youtube.com##+js(set, Object.prototype.adBlocksFound, 0)
youtube.com##+js(set, ytplayer.config.args.raw_player_response.adPlacements, [])
youtube.com##+js(set, Object.prototype.hasAllowedInstreamAd, true)