In the mean time I now have the Mobula 6 and 7 both running BF4.2 and with RPM filtering enabled (JESC).
No issues whatsoever. They fly very nicely.

(23-Jun-2020, 09:32 AM)Yskonyn Wrote: In the mean time I now have the Mobula 6 and 7 both running BF4.2 and with RPM filtering enabled (JESC).
No issues whatsoever. They fly very nicely.

I still have problems. Running also BF 4.2.0, and the lastest JESC.

(12-Aug-2020, 05:30 PM)Oxize Wrote: I still have problems. Running also BF 4.2.0, and the lastest JESC.

Hi. I'm experiencing this problem too. Does anyone have a fix?

I have just bought a Mobula 7 HD (with a Crazybee F4FS Pro v3). I've plugged into Betaflight, set all my settings - modes, pids, rates, OSD options. All saved fine. However, after unplugging the drone, when I go back into Betaflight a short time later all the settings have been lost. The drone initially came with Betaflight 4.1.1 and when I started to experience this issue I decided to flash to 4.2.3. But the problem still persists.

Any suggestions? Is it likely to be an issue with the ESC? Or am I just doing something wrong? I've not flown it yet and I've only put in a couple of lipos, which were flat (I'm still waiting for my charger to arrive!).

Total noob so apologies if non of the above makes sense.

(03-Oct-2020, 03:53 PM)m0nkmaster Wrote: Hi. I'm experiencing this problem too. Does anyone have a fix?

I have just bought a Mobula 7 HD (with a Crazybee F4FS Pro v3). I've plugged into Betaflight, set all my settings - modes, pids, rates, OSD options. All saved fine. However, after unplugging the drone, when I go back into Betaflight a short time later all the settings have been lost. The drone initially came with Betaflight 4.1.1 and when I started to experience this issue I decided to flash to 4.2.3. But the problem still persists.

Any suggestions? Is it likely to be an issue with the ESC? Or am I just doing something wrong? I've not flown it yet and I've only put in a couple of lipos, which were flat (I'm still waiting for my charger to arrive!).

Total noob so apologies if non of the above makes sense.

I've managed to figure out what's going on here so I just wanted to note it down here, you never know, it might be useful to someone else.

I found that it was a problem caused by one of my batteries! When I connected this one particular battery to my drone all the Betaflight setup got wiped. When I plugged this battery into the charger I got the error "The voltage of single cell is too high or too low". So it's a broken battery! 

Weird but that was the problem for me - connect the battery, bam all the config lost. Since disposing of that battery, I've not had any config loss.