Linked 18i20s Not Showing All Inputs.

[MightyUnicorn]

Hi there, folks.

I have two 18i20s (2nd gen) linked together. There are 8 hardware inputs each, for a total of 16 hardware inputs and 20 hardware outputs. I am not including the ADAT or SPDIF outputs. I am only talking about actual cable inputs and actual cable outputs.

In Ableton Live 10, it sees all of the inputs that are available, and it sees all of the outputs that are available.

In Reaper, it only sees 8 hardware inputs, but sees all 20 hardware outputs just fine.

I am not using ASIO4ALL, as it's unnecessary. I am using the manufacturer's drivers and configuration software, and it's all working perfectly in Ableton.

This appears to be a problem only in Reaper. Can you help me get it working right?

[ivansc]

Silly question: You are pulling the input box down to show all available inputs?

I know the answer is almost certainly yes, but worth checking.
I am also wondering if Reaper is actually seeing the 2 interfaces as separate input boxes but doesnt want to let you use two ASIO input devices simultaneously.

Seems odd if it is showing all the outputs though...

[solger]

If you haven't already, maybe double-check the input channel mapping (shown at around 4:22): https://www.reaper.fm/videos.php#Hh04XZqFsic