Yeah found the databases.
So after the one- and then two- version back to back install I see this
sqlite> select * from CachedPlugins where FileIdentifier LIKE '%Six Sines%'
...> ;
Six Sines.vst3/48C6D230AACC57BA976D20DEFF9B93C1|48C6D230AACC57BA976D20DEFF9B93C1||0|||1|1|0|1|BaconPaul: Six Sines|Six Sines|Six Sines|0|0|1
Six Sines.vst3/37A66D34E2835683B952CD15E50BAA6C|37A66D34E2835683B952CD15E50BAA6C||0|||1|1|0|1|BaconPaul: Six Sines, Seven Outs|Six Sines, Seven Outs|Six Sines, Seven Outs|0|0|1
Six Sines.vst3|48C6D230AACC57BA976D20DEFF9B93C1|/Users/paul/Library/Audio/Plug-Ins/VST3/Six Sines.vst3|0|||1|1|0|1|BaconPaul: Six Sines|Six Sines|Six Sines|0|0|1
if I then do a
delete from CachedPlugins where FileIdentifier LIKE '%Six Sines%'
and restart renoise, the multi-plugin version loads correctly
So it really looks like a single-to-multi-rescan leaves the cached plugins database corrupted
so since we know how to fix this now, I’m going to remove the single plugin build from the nightlies and leave it up to you all!
Thanks @ffx for the bug report and @taktik for looking so quickly!