This little white right pointing arrow started appearing for like 0.25 of a second all the time every few minutes, if someone can tell me what it is and what's causing it I'll send you a thank you in eth. I had to slow down a recording by 800% to get it to show up so I could capture it, what is causing it? It happens when notifications are all there and when they are all hidden and a mixture of both as well.

If this is not on topic please let me know where I can post it, thank you!