This mod, along with other level slowing mods has been known to be responsible for freezes on the level up screen.
I think this may just be a problem with Broken Steel as it worked flawlessly for me till I got that DLC but I've seen the problem documented in other places and have tested it myself. Also, if you stop using it after using it for a really long time, you will get several level up's in a row.
Kru
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