please pay attention to the configure report you get when building qtractor from source; some libraries or packages needed for LV2 plug-in support might be missing, especially liblilv-dev and/or its direct dependencies, libsratom-dev, libsord-dev, libserd-dev.
the output from qtractor_vst_scan is considered normal as carla.vst has some files (.so) which are not exactly a VST plug-in file but library components of some sort.
please pay attention to the
configurereport you get when building qtractor from source; some libraries or packages needed for LV2 plug-in support might be missing, especially liblilv-dev and/or its direct dependencies, libsratom-dev, libsord-dev, libserd-dev.the output from qtractor_vst_scan is considered normal as carla.vst has some files (.so) which are not exactly a VST plug-in file but library components of some sort.
seeya