I had only the X7 in suspicion.
The friendly support then informed me that there have often been problems with SanDisk.
Thus, I tested another NoName map and lo and behold, no bugs and no more beeping in the videos.
The card itself is fast and of its essential purpose.
But not in connection with ACTIONPRO X7 and possibly also GoPro and CO ...
I can only confirm for the X7, but would imagine that in other it leads to the same problems.