We haven’t received any report of a similar issue. What do you mean by crashing? Does it just reboot on its own? Or do you mean it loses response?
The only thing I can think of would be the microSD card — I’ve seen a few cases where after upgrading the firmware, the microSD card needs to be reformmated. Generally the symptom is that upon reboot the controller displays error code 0x2D and cannot proceed.
It is possible to roll back to the previous firmware: with the firmware upgrader, before uploading firmware, there is a drop-down list where you can select the version of firmware you want to upload.