rncbc.org a.k.a. Rui Nuno Capela

OK. I'll look at it ASAP. Thanks for trying ;)

[EDIT] An attempt to fix this issue has already been committed to CVS HEAD (qtractor 0.1.1.879+) Please try when you're ready.

There's however a slight/deep functionality change you might find as a consequence: record armed audio tracks gets all its contents muted on playback. This is indeed necessary to make plugins work exactly as expected, otherwise the playback and the monitored plugin buffers would accumulate on each other as an undesirable artifact effect with completely disparate results--in fact the resulting new effect was not quite the duplication of the individual effects over the same signal but more like the interleaving of two separate signal buffers, just like a brand new and uncontrollable cheap effect altogether. Scraped now.

Hope you understand this decision.
--
rncbc aka Rui Nuno Capela