The crypt is the place of mysteries. Umlaut have fun with this one for last month for sure.
when level cap is bumped, it helps the power spread of available lines. That eases whatever is wrong with the internal calculations. Over time it will grow worse gradually as everyone approaches the new cap. (in my experience).
Yeah crypt has been bugged for a while. What you showed was a much better situation lol. Check this out. We are getting this once every few days