DarkCore Se - keep locking after a rest

After 18 months of good use, 3 days ago I got this strange issue both wired AND wireless

After a "rest" the mouse lock, not taking any input, for like 100-300ms .

(if you move it quickly 25cm the cursor will not bulge, if you use the wheel there is no scroll)

>> rest time may be a few seconds but also only half a second - randomly <<

The issue may perdure for 30 seconds or 30 minutes,

then it may stop for a period of few minutes or few seconds, then it restart.

That's driving me crazy even writing this short message :-(

update:

may be it's only my idea, but when in wireless the "lock time" seems shorter then wired !!!

Any suggestion?

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Device Polling = 1msec

sleep mode = 4minutes

Power saving mode = off

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Update:

the Mouse sit with 2 Keyboards and a web camera on a USB A Hub that should be 4x3.0.

For a mistake the cable from the PC front USB to the USB Hub was damaged 10 minutes ago.

(neatly scissored by a falling PC back plate !!)

I changed cable and changed also PC Port.

In last 5 minutes didn't got any no lock

(fingers crossed)