maximum AG channels in Reaper is 9 for some reason

[naokiapri]

Hi!

I'm trying to use multichannel plugin with AG in Reaper, though it limits me to 9 channels maximum for some reason (if using track with channels up to 32).

when I increase track's channel count to 32, Reaper shows enough inputs and outputs, though AG let me use only 2 of them

I'm trying to use plugin with variable i/o, with limitation of 9 channels I'm able to use 7.0.2 but not 7.1.4.
Maybe I should tweak some configs? I cannot find any place where it states default channel count though.

Plugin: AU (1.2.0) on Mac M2
Server: 1.2.0 at Windows 10

[naokiapri]

Oh, I have found out that it is happening only with AU version of the AG plugin, VST and VST3 are working as expected.