Debugging on remote kernel not working -concatenating paths

[Mrsxp]

I'm currently experiencing the same spyder-ide/spyder#18330 again, however no exception is thrown.
Spyder-Kernel-Version: 2.5.1
Spyder-Version: 5.5.1
Qt 5.15.2
PyQt5 5.15.10

Yet, the paths are concatenated. While debugging following appears:

debugfile('X:/program/debug_test.py')
/home/usr/shared/X:/program/debug_test.py(1)()

Executing the code line by line works but breakpoints are ignored.