Sudden reboot while using monitor mode

Hi,
I’m using my Max 2 in monitor mode a lot. Since the latest update it repeatedly suddenly reboots while using monitor mode. I can’t detect any pattern behind it and the frequency of these sudden reboots is quite irregular (sometimes it’s happening twice in five minutes and sometimes not at all for an hour). It doesn’t do this while using the Max 2 as an e-reader.

Does anybody else experience this problem and are there ideas concerning a solution?

Thanks!
Jan