I'm thinking about purchasing the Traktor Kontrol S2 MK2 and I have the Traktor PRO 3 software on macOS Sequoia. Do you know if it works well?
Could I have an incompatibility problem?
According to the compatibility list the S2 MK2 is supported under Sequioa, but TP3 isn't supported. Having said that it works here with an S8 so I wouldn't expect you to have problems. Worst case would be you need to buy the upgrade from TP3 to TP4.
The compatibility list is here if you want to check it out - https://support.native-instruments.com/hc/en-us/articles/13671802084765-macOS-15-Sequoia-Compatibility-Statement