some remarks:
a) it just shouldn’t crash. If it does, we are happy to learn how to reproduce if ever possible.
b) there is a bug that makes the ID option disappear once you close a connection. Closing and re-opening the VST Connect plugin view should help, otherwise remove and re-install the VST Connect plugin. Will be fixed, sorry.
c) “it recorded just silence” - pls have a look at the sync LEDs, recording must always work unless these become red. Try to increase “RemoteLatency” to 2 seconds for instance.
d) reverb works, but you have to enable a send (tiny horizontal fader in the channel) plus the reverb active switch.
e) check if the metronome click is visible in the cue send in Control Room. The meter should show the same in the plugin. Make sure click is activated in the Control Room VST Connect Cue channel. Click has never failed to work so far.
f) the PRO version works like the SE version, but it can record up to 16 channels and recordings are additionally stored in full resolution on the Performer computer and later transfered. As such, yes, recording quality is obviously better.
g) you may check https://www.connectvst.com, it may provide some hints as to what may go wrong.
Hope that helps.