BUG - configuration LOST after switch mode DMR to YSF

[IZ8GUR]

The problem is this: when I have DMR mode active in the dashboard and I deactivate it by activating YSF, after applying the configuration it is completely lost.
The MMDVMHost configuration file is present in the file system, but it is no longer read in the web interface, the system must be reset to resolve.
I've tried various versions, but I think the problem is in the dash version and not pi-star.

Has this happened to anyone? Is this a fixable bug?