Create Stem - PC crash!

Hello,

I would like to create wav or mp3 files in Stem. This works quite well so far except for the 3rd or 4th song, if I don't close Traktor beforehand, after the first and second Stem creation, the PC has a system crash, the 3 or 4 Stems created are then not saved as Stem at all (because “restart”), but can still only be played as a track. The CPU load “during the process” is sometimes briefly at 100% but only for 1-2 seconds (although this easily occurs 10 times in a minute of creating stems).

My PC:

Windows 10 Pro

Intel(R) Core(TM) i7-9700K CPU @ 3.60 GHz 3.60 GHz

Memory 32 GB

Graphics card NVIDIA GeForce RTX 2080

Controller S4MK3

Traktor Pro 4, version 4.1.1 23

I downloaded and installed the Asio driver, but the crashes persist.

Then I increased the buffer size in the Traktor settings from 256 to 1024, now the PC no longer crashes every 2 songs, but maybe on the third or fourth Stem song created.

I don't know what else I can do.

Thanks in advance,

Greetings Kay