I have an issue after importing model from STP file.
I tried to heal geometry, detect & simplify lines, faces, volumes but while meshing it shows error:

Below you can see picture with these line and face:

After receiving error I tried to repeat detect & simplify faces but it shows error too:

Do you know it could be typical issue with STP model importing?
I do not see any geometrical fails but maybe you can see the source of issue and way of resolve.
Thank you in advance!