Expected Behaviour:
pihole -up should update the system without any problems
Actual Behaviour:
the process get stuck on "Building tree..." for over 50 min. (usually takes no more than 15 min) then the connection dropped (I was connected via ssh)
so I went back to pihole v5 restoring a previous image of the sd card for now
I've read around the forum that many people have had their building tree process blocked, apparently running out of RAM (I have a Raspberry 3B+ with 1GB)
I have over 11M domains on adlist but never had any problems on v5