On the Monster 1 anything newer than Firmware 1.24 does not have really nice startup parameters
goes from "odd" to "total fail"
I guess, the "good old" Version 1.24 for the Monster 1 does not work on the Monster 2
On the Monster 2 the 1.32 is currently the best choice, but not as nice as the 1.24 on the Monster 1
Same does apply to the Mamba Max Pro
Best Firmware here is 1.26
I had a talk with Richard this year on the Toy Fair in Nuernberg
regarding this issue and some other minor things on the latest firmware versions.
I offered some intensive firmware testing for Castle, but no reply yet....