PyCharm Celery debug mode does not work

MacOS Catalina

PyCharm version - tried on 2020.2.1, 2020.2.2, 2020.2.3

Celery tasks are being executed in run mode, but in debug mode are not stopped at breakpoints or even there are cases when celery process stops in the midst if breakpoints are set.

I have been using PyCharm with Celery on Catalina the whole year and everything has been OK but yesterday I updated PyCharm and got into trouble. I reinstalled PyCharm versions on 2020.2.1 and 2020.2.2 but anyway it does not help.

The is suggestion that brew upgrade (I made yesterday as well) somehow (I do not knot how exactly, but may be ?) has relation to the problem.  

Thanks in advance for helping!