Fans are flashing RGB after booting up
Recently the fans (Lian Li Uni Fan SL-Infinity 120mm) in my PC are flashing solid red, green and blue after booting it up. Video for reference, one flash at the beginning and one at the end, taken about ~3 minutes after boot. Sorry for the ugly colors, it looks better in person :')
They consistently flash for ~1-2s in an interval of about every 20-30s, for about 5-10 minutes, then they return to their normal color without flashing. I have this PC for about 6 months now, configured the cables for LEDs and everything at the start and since changed nothing about that. The flashing has started only a few weeks ago.
I control the RGB for the fans as well as fan speeds with the L-Connect software, all of them are wired up to the fan hub that comes with the triple fan bundle.
I also use the Arctic Liquid Freezer III Pro 360, plugged directly into the motherboard (the two white cables at the top right of the MB), controlled via the ASRRGBLED software (MB model ASRock B850 Pro RS), this is not affected by the flashing, so I suspect it might be a controller/hub issue or a problem with the L-Connect software...
Any ideas how to fix this or experience with the same pro?