I have had random key chatter pop up too every couple of weeks/months/years on my Model01. Huge reason why I am mainly using the Atreus now.
Instead of replacing the switches though, I went through this post which shows the anatomy of the switches and how to fix them.
I am resigned to popping off the casing and bending the metal to the optimal angle. This seems to be an actual design flaw with the Alps/Matias-style key switches. If not a flaw, they are failing to work as reliably as cheaper keyboard switches.
The upcoming Model100 is probably the easier upgrade path for now. Maybe if we are lucky, we can get some kind of conversion kit or guide to swap them for the (from my experience for now) more reliable CherryMX switches.