So my best guess, again, is that your PSU is a little too weak. One thing you could try is, if you can access the ext4 filesystem on partition 8 form another system, to change the CPU governor in /boot/dietpi.txt from schedutil to powersave to check whether a fixed low CPU clock ...
Fixed a PC voice chat bug in which inviting players to the game set the squad leader’s voice chat record mode settings to Open. Fixed a PC bug in which pressing ALT+ENTER in-game while having the personal information panel open would leave the player with no functionality. ...