I am having such problems. I "finished" an installation, but then it said "trouble with package" or something along those lines. Now my storage has like 3gb filled and I have no idea where the files are as it isnt shown when I do "analyze files"
Edit:
I "fixed" it by restarting the phone entirely. Not sure if it was just showing an incorrect value before or if it needed a reset to clear the data.
Now I just have the problem that android in all its glory decided that restarting my phone means I want all my folders deleted. After restarting AGAIN I finally got the program shortcuts to reappear, but not in folders...