Segmentation fault using Shapely after installing alphashape

[Eslsamu]

I was using alphashape and Shapely together and it lead to a Segmentation Fault when creating a Polygon in Shapely.
After uninstall alphashape, Click and click-log this fault still occurs.
I had to completely remove pip3 to clear this error.

Not sure if this issue belongs more to alphashape or Shapely.

I am using Ubuntu 18.04 with the newest python3 and pip3 version.