There are a lot of threads about this already but none are helping, at least for my LM.
I try starting the game up, but either the black box shows up for a split second before disappearing or it's stuck updating.
I know about deleting the version.txt file and restarting the game but that doesn't work either, the .txt file keeps coming back.
The game has worked before (I had it for months now), this is the first time this is happening to me.