Why might on-save not be triggering on WSL in dev?

Running both Windows and Linux (via WSL) on the same machine I note that when running ‘bb dev’ in PowerShell changing a file results in asset generation and the unit tests being executed. However running the same in WSL against the same project seems not to trigger the on-save function. This suggests beholder may not be working in my Linux environment. Any ideas why?

Interesting. No immediate ideas on why that might happen. Or actually… which filesystem is the project stored on, windows or within WSL? I use WSL with all my project files stored inside WSL; maybe if the files are outside Linux, it breaks Beholder?