Sometimes after working fine for a while, Virus Control all of a sudden shortens the notes sent to the Virus TI by a considerable amount. It is most obvious with legato lines on Mono synths (which are no more legato) and fast sequenced lines (which turn into unnatural staccatos).
When switching to "Live" mode, VC sends the note off at proper position again - but introduces audible timing inaccuracies.
Sometimes VC heals itself after a while but normally I have to reload VC in order to have get proper timing back.
TI OS 5.1.3.0
Cubase 8.5.15
Mac OS 10.11.6