If I downgrade to 3.5.26 it works correctly.
Process: Audirvana [664]
Path: /Applications/Audirvana.app/Contents/MacOS/Audirvana
Identifier: com.audirvana.Audirvana
Version: 3.5.27 (3557)
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Audirvana [664]
User ID: 501
Date/Time: 2019-11-29 20:53:42.408 -0600
OS Version: Mac OS X 10.11.6 (15G22010)
Report Version: 11
Anonymous UUID: 972E5C6A-F650-C76E-18CD-7318F005F461
Time Awake Since Boot: 1500 seconds
System Integrity Protection: enabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: EXC_I386_GPFLT
Exception Note: EXC_CORPSE_NOTIFY