Faulty AMS?

Hi, hopefully somebody has had the same problem, and solution.
All of an sudden the third slot of the AMS lite has problems:
after printing a few seconds it goes to purge, every few seconds it does this.
Things I already did:
rebooted printer,
used new micro sd card,
used several different files, (never had problems with those)
Used different filaments,
Unplugged and plugged in AMS Lite.
If trying to unload filament in slot 3 printer freezes.
No problems with same files etc. in slots 1, 2, and 4
Thanks in advance for any pointers.

Problem partly solved:
Printer froze a few more times, warned me that both x and y belts were loose.
Video stopped working.

After switching the AMS to the other socket, slot 3 working again, no more complaints about the belts, so the problem is the printer not the AMS Lite.
Hopefully it stays this way.

I’m grateful with you because I’m having problems wiht my AMS lite and I don’t know where it can be the problem, and you get me some options more.

Till this moment I tried like you to print in diferent slots and always the nozzle cloked and print with lots of extrusion failures.

I printed directly from the external slot ( wihtous AMS ) and all runs perfectly… then the failure is in the ams ( I thought )… or not ( after I’ve read yor comment )

I’m going to try it. REGARDS!