Harmonizer plugin builds but doesn’t affect audio — would appreciate any help

Hi everyone,
I’m working on a JUCE plugin that’s supposed to apply vocal harmonies. It builds and loads fine in REAPER, but it doesn’t seem to affect the audio.
I’m currently using a Yin pitch detector and PSOLA for pitch shifting. I’d really appreciate anyone who’s willing to take a look or offer suggestions.
Thanks in advance!

Without being able to see the code, it’s hard to know. But if the plugin is passing audio through unprocessed then I assume there’s a mistake somewhere in the processBlock. Maybe not iterating through the samples or an early return somewhere that’s being called. Is there a repo somewhere you can link to?

Have you tried using a debugger? You could attach one to reaper and set breakpoints in processBlock in order to get an idea of what’s going on