I recommend if you need a new interface to stay with Focusrite.

Focusrite is one of the better brands for interfaces and
Focusrite products are as good as anything else you will find. Just choose the model that best suits your needs.

As for the cause of the intermittent issue, I suspect and inspect equipment in the following order:

Cables and connections

Computer

Interface


BIAB 2025:RB 2025, Latest builds: Dell Optiplex 7040 Desktop; Windows-10-64 bit, Intel Core i7-6700 3.4GHz CPU and 16 GB Ram Memory.