Not first time I face permanent stuck when char tries to do town run after entering Azmodan location and before killing him. Inventory becomes full just near the entrance to the location and char firstly enters location, then standing still and trying to TP. This needs to be fixed.
you have to use a profile tag to always do a town run before the boss if you want to avoid that. I cannot remember what the tag is though. edit: found it, forgot it was a trinity tag: <TrinityTownRun questId="1" /> add that somewhere in the code before the boss.