Rules are gone after reboot

Openhab2 (openhabian) snapshot
Rules Engine 2.4.0.SNAPSHOT
Paper UI

I can create rules that function as advertised. But I cannot edit the rule after I create it (Error 404 not found when trying to save) And if I reboot all the rules are gone.

I have double checked the rights with the openhabian config menu.

Not sure how to resolve this - suggestions?

Which snapshot? I just posted this today…

This issue would very likely affect the Experimental Rules Engine.

Has this worked before?
Which editor do you use?
On which plattform does oh run?