The bug also is happened more frequently after I import a new print/loading a filament and click start then the status is waiting on connecting. If I close it and click on “Machine” then “Start”, it works.
Here is also another old problem which I reported it on February. I think it’s on Flux firmware. It’s happened only when homing routine. Note that there are nothing obstruct (tube or cable) a returning home path) and the carriages are closed to a home switches.