Just wondering what the resonant length of some of the conductors/PCB wiring traces carrying disk data is in relation to wireless signals in very close proximity, both at 2.4Ghz and 5Ghz wavelengths? For the X1001 as well as Raspi Hat versions, and possibly others, commonly found in Argon cases.
Maybe this entire issue is just a simple case of poor RF design and shielding for the SSD connections and HATs being swamped by WiFi, right there, millimetres away, corrupting the disk data, and the disk data radiating from the traces, corrupting the WiFi.
The drive ECC process has probably been getting some serious workout.
Anybody done some actual real life measurements and connected a scope and signal analyser?