@sauberns unfortunately this seems to be a constant problem with Apple silicon machines. Extensions will not be installed correctly and the system not recognizing that an extension is already installed. It seems to randomly affect various extensions.
I have not yet seen enough focus on this problem (yet). My current ‘solution’ is to use the intel version of KNIME on my M1 machine. This does work but I am missing out on the 20% performance boost.
@ScottF it would be great if there could be a general fix for this.