So what I normally do when testing a synth: I load a FL project that contains one or 2 already made patterns. Then I right-click the channel and replace the default instrument with the synth I'm testing. In Lucid's case, if the pattern is already playing (running) it will load and put out sound just fine, if the pattern is not playing, it loads but its silent.
Judging from all that was posted here, it seems there's an issue with FL Studio specifically (since others had no such issue in other DAWs). Pity...but it happens. Anyway, best of luck in DC



