TL-D3 V2 error no: 12 ?

[BEST3D]

Hi,
I am looking for help with my new machine.
If am not in the right place please let me know.

I am printing with a new TL-D3 pro V2 with a 600w PS.
So far, I printed 5 small projects without any problem.

But now, I start the project... it print a few minutes than Pause 15 secondes... print a few minutes than pause... and after 2 hours or so (3h for the 3rd trial) it stop and give me a "no:12 error" failed print 😔
According to what I found, #12 is an issue with temperature ?
However, from what I can see, the readings on the display show 205/205/60 (hotend1/hotend2/bed) as requested. And by observation... it is stable and no difference can be seen just before the "pause".

Note: I print trough a beagle Cam/USB connected.
Note2: I used the same set-up and printed the same project on my TL-D3 pro (2209) and completed just fine after 11hour 41minutes.

Any idea as how/where to investigate?
Thanks