WE stoppped working on a specific project

[JulienNacci]

I have a very strange behavior:
WE wsa working perfectly and at some point it stopped for one specific project:
creating a bundle with the context menu works as expected.
I can see the message in the output console.
Then bundled files remain unchanged whatever I do (rebuild solution, WE rebuild bundles, modify the '.bundle' files).
No message in the output console.

My other projects are still behaving as expected.
Any help appreciated.