Problem launching CPA from source


I am using Cellprofiler Analyst. I encounter some problems to import a trained a model into a new experiment. Reading in the forums, the recommendation I got is to install Cellprofiler Analyst from source. I managed to do so following the instruction, but when I try to launch the program I get a black screen that then disappears and nothing else happens.

I am using windows 10 and python 3.8 installed.

Any suggestion to get Cellprofiler Analyst running and importing my model is very welcome. Thanks for your help.