Native Instruments currently warns all users against upgrading to OS X 10.11 (El Capitan) due to major compatibility issues concerning KOMPLETE, MASCHINE and TRAKTOR products. The following two major issues have been identified:
Validation of AU (Audio Units) Plug-ins Fails in Logic Pro X
All Native Instruments Audio Units plug-ins will not pass the AU validation and therefore will not be available in Logic Pro X under OS X 10.11. The root cause of this issue has been identified and a workaround is still being developed in close contact with Apple. We will keep you updated on any developments regarding this issue.
Kernel Panic when Using Legacy Native Instruments Devices
Incompatibility between some older NI devices and OS X 10.11 has been discovered. This issue triggers kernel panics that crash the connected computer immediately, resulting in loss of any unsaved work, or serious disruption of a performance.The following hardware is affected:
• TRAKTOR KONTROL S4 (MK1)
• TRAKTOR KONTROL X1 (MK1)
• TRAKTOR AUDIO 2 (MK1)
• AUDIO 8 DJ
• AUDIO 4 DJ
• AUDIO 2 DJ (MK1)
• MASCHINE (MK1)
• RIG KONTROL 3
There are beta drivers already available that fix this issue. You can download the beta driver for your corresponding device here. If you have more software / hardwre with problems ow not, please write it down in the comments!