Hey! I just got the latest Arnold release for Cinema4D R21 on my Mac and I can't register Arnold product. ArnoldLicenseManager also crushes when I hit 'Register' button. Bug report is in attachment.
I have an active NLM license by the way.
If you have an NLM license, you do not need to Register (that's for single-user licenses only)
NLM = multi user
In the Arnold License Manager, click License > Switch to Network Licensing
If you need to install the Autodesk Network License Manager, click File > Install License Server
If you already have a license server, did you get your new license file?
https://docs.arnoldrenderer.com/display/NLG/Getting+your+Autodesk+Network+License
If you need to replace an existing license file:
Windows
https://knowledge.autodesk.com/search-result/caas/sfdcarticles/sfdcarticles/Replacing-existing-licen...
macOS
https://knowledge.autodesk.com/support/flame-products/learn-explore/caas/sfdcarticles/sfdcarticles/H...