When's Altcom fix diff ?
Diff is not broken. It's depends on PoW and PoS, but PoS got the better priority.
But with Block 75000, there will be less PoS blocks and therefore more PoW blocks.
They manage that by increasing the needed confirmation for PoS to 1440 blocks.
Less PoS blocks with more value of each PoS.
Be sure to update your wallet soon (either 1.1.0.0 or 1.1.0.1 is needed)