>>33470499They're wrong, it's not all the time, it's only when the update concerns battles.
There were a couple big bugs in moves fixed so BVs were wiped out twice.
Specifically because battles would happen differently with the debugged engine meaning you wouldn't necessarily be watching the same video anyway.
Depending upon what they changed it could even cause crashes or arbitrary code execution so of course they're going to prevent playback of older videos then.
