Crash when starting or reloading plugin

Substance Painter is crashing for me when starting or reloading plugins. This seems to be the case due to appending another path to the "path" variable in the substance_painter_plugins module and then reloading the plugins. The variable is also appended to during a startup script, which might cause the start up crash.
This seems to be an issue with Version 10.1.0, 10.0.1 is working, both on Windows 10.

Sincerely,
Benedikt