POWAIR Error in Wavelab 12 on MAC: Unsupported input channel layout

Hi everyone,

I’m trying to use POWAIR in Wavelab 12 on MAC M1 , but I keep getting the following error when inserting it:

"At this insertion point, the plug-in does not support the input channel layout." (See attached screenshot).

I have verified that Wavelab’s Channel Processing routing for this insert is set to standard Stereo, and other plugins in the exact same chain are working without any issues.

Is there a pragmatic workaround, a specific setting in Wavelab, or a known VST3 handshake issue I should be aware of to get POWAIR working here?

Thanks in advance for any help!