Restore to hardware calculator broken?

[pinkman]

I've also experienced several crashes of CK (MacOs), but there is an assertion that I cannot respect: my firmwares are not of the same versions.
- iOS HP Prime is version 2.1.14346
- hardware HP Prime is version 2.1.14425 (Prime G1 model C)
(yes these are the latest versions, but they are not the same)

Backup iOS -> restore iOS : works well
Backup HW -> restore iOS : works well
Backup * -> restore HW : data is copied (name, params, vars, programs, CAS state), but the Prime crashes and the Home state is not restored. CK crashes also.

I've tried without 2 devices having the same name, same problem in CK.