Steps to reproduce:
1. Download user provided Unity and FMOD projects
2. In the top menu, select FMOD -> Edit Settings -> Browse to the path of your FMOD project
3. Refresh banks in the top menu (FMOD -> Refresh Banks)
4. Play the scene
5. Play any sound
6. Stop the scene and play it again
- crash occurs at this point

Expected result: editor should not crash when the scene is replayed

Reproduced in: 2018.2.0b9, 2018.1.0f1, 2017.3.2f1, 2017.2.2p1, 2017.1.3p2

0x00007FFDCF0E6E3A (fmodstudiol) FMOD::ChannelI::validate
0x00007FFDCF06A032 (fmodstudiol) FMOD_Studio_VCA_SetVolume
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFDCEF78C02)
0x00007FFDCEF78C02 (fmodstudiol) (function-name not available)
ERROR: SymGetSymFromAddr64, GetLastError: 'Attempt to access invalid address.' (Address: 00007FFDCEFB5112)
0x00007FFDCEFB5112 (fmodstudiol) (function-name not available)
0x00007FFDCF017E02 (fmodstudiol) FMOD::Studio::System::stopCommandCapture
...