I am aware of 2 large issues:
1. The "Employee" dialogue when you don't have enough money doesn't show an "X" to close. (You are still able to click on everything though)
2. The employee doesn't actually take any money from the tip jar when you buy a service from him. (Like #1, this does not make the game unplayable/protrusible, it just messes up some of the progression aspects.
These 2 issues should be relatively easy to fix, but, since this was an entry into a competition, I will wait until AFTER the jam ends to publish these changes.