sensors_custom.py is ignored by main.exe

[stobiaskoch]

Hello guys,
to display data for my Intel ARC B580 i compiled from https://github.com/zzzoom/LibreHardwareMonitor/tree/intelgpu
Started with remote web server and created a sensors_custom.py to retrieve the data from localhost
placed the sensors_custom.py in library/sensors
everything is working fine when started with python main.py, data is displayed.

created the folder next to main.exe, error
Error loading custom sensor class LhmGpuLoadWeb from sensors_custom.py : module 'library.sensors.sensors_custom' has no attribute 'LhmGpuLoadWeb'

Is there any way to use the custom sensors with the main.exe or am i missing something?