Every new dungeon level I've generated since about Saturday or Sunday has had no stores and no teleporters. I have zero idea what is going on. Previous stores and teleporters from previous levels still exist, just new levels have none.
While this could just be the RNG having a Strange Mood that will pass eventually by itself, which version are you running? (number, hot fix, beta, etc)
Just went down to I'm entirely up-to-date on Steam, running no betas. A few minutes of Googling yields no results as to how to find the version. ಠ_ಠ Just went down to floor 8, though, and it's got both Brax and teleporters, so it's possible the RNG hates me...
Version number can be found by looking at the bottom left of the splash screen behind the main menu (the big CotW artwork). If you're sure you're current on Steam it'd be 1.1.2 I guess, but it's fairly easy to just quit to the main menu and check.
As far as the actual cause, I know the number of stores on a given level can be anywhere from 0-3. If you're playing on No Time To Grind I think it's more likely for there to be no store at all, but it can happen even on full-size dungeons. My guess is just a perfect storm of bad RNG luck.
Hrm. I want to go through the source now and calculate the chances of 7 levels of no Brax. The super weird thing is no teleporters though... not sure what would cause 7 levels of /that./