I too am having a problem where 3.3.0 locks up when hitting Melodyne Integration on Windows 10 64-bit (version 1607, build 14393.82). WinDbg reports the following:
ModLoad: 00007ffc`ee080000 00007ffc`ee30a000 C:\WINDOWS\SYSTEM32\WININET.dll
### Warning: UCNET:Adding server via UDP discovery 192.168.1.120 : tcp 52203 udp 64081 (alive event)
### Warning: UCNET:Server "Universal Control/1.8.0.38751" (id = "") resolved at host "192.168.1.120", tcp 52203 udp 64081
(1078.24c8): Access violation - code c0000005 (first chance)
First chance exceptions are reported before any exception handling.
This exception may be expected and handled.
*** ERROR: Symbol file could not be found. Defaulted to export symbols for C:\Program Files\Common Files\VST3\Celemony\Melodyne\Melodyne.vst3 -
Melodyne!std::_Init_locks::operator=+0x544ba:
000001fb`10f16512 48391b cmp qword ptr [rbx],rbx ds:00000000`12d3f8f0=????????????????
0:000> g
### Warning: Could not get Class Factory for C:/Program Files/Common Files/VST3/Celemony/Melodyne/Melodyne.vst3