[SOLVED] RPi out of memory

[TheOldPresbyope]

FYI.
As a test I replaced the RPi 3B+ with a RPi 4B 2Gb memory. MoOde is working without any problem. Updating the library is not causing extreme memory usage or freezing of the system.
At my place another 3Pi 3B+ is running Pihole with a brided AP. After upgrading the OS from 32bit to Rapberry Pi OS 64bit the system proved not stable. At least once a day the system froze. Changing back to Raspberry Pi OS 32bit solved this problem.

Without really being solved this issue, for me, is closed.
regards
Wim

So are you saying that simply running 64bit Raspberry Pi OS on your RPi 3B+ (eg, not even installing and running 64bit moOde) causes out-of-memory or instability problems? That makes this an issue for the Raspberry Pi Forum.

Regards,
Kent