Ditto, same problem here
I had some other issues but had to completely reset and start over again and then now I am down to just this one.
I am having the same problem. " Failed to set flight modes"
I can replicate this. We'll fix it in the next 24 hours.
The altitude is off by a factor of 10 now ! 10 x too little in the feet mode.
i will revert back to .73 when i get home. and sort this out.
Also not 100% sure if this is MP .74 because I haven`t tested everything, but I would say so? also but compass was out 210 degress on flight data after updating