PC-BLE-driver-js - sporadic crash on startScan

Hi,
We have custom nrf52840/33 peripherals, advertising every couple hours, and passing/receiving information from centrals running node.js version 12.22.5 with pc-ble-driver-js version 2.7.2.

Totally sporadically (can be 24 hrs --> 24 hrs --> 5 days --> 24 hrs --> 2 hrs), but especially on centrals located next to a lot of peripherals (in the low hundreds), scanning fails with the following message:

pc-ble-driver {
 "message": "Error occured when starting scan",
 "description": {
  "errno": 32774,
  "errcode": "Unknown value",
  "erroperation": "starting scan",
  "errmsg": "Error occured when starting scan. Errorcode: Unknown value (0x8006)\n"
 }
}
We have tried upgrading to pc-ble-driver-js version 2.8.2 - to no avail (npm and yarn issue downloading - will open separate issue here and in git repository).
Any suggestions?
Thanks!
Roi
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