Colab variable inspector stops working after importing from fastbook

As best as I could find, this question was not asked before. I'm using colab, and I use its variable inspector. I'm trying to do the FastAI exercices, and I noticed that when doing them, the variable inspector stops showing variables. For instance - I open a new notebook and I start creating variables in cells. x=5, a=6 and so forth. These variables are shown in the inspector. But, once I run the line:

from fastbook import *

the variable inspector gets wiped clean, and stops showing variables, even when I create new variables.

I'd appreciate any help. Thank!