I repeatedly get the following message when attempting to upgrade from MC 25 to MC26: "JRWorker quit unexpectedly". The beginning of the report is as follows:
Process: JRWorker [7785]
Path: /Applications/Media Center 26.app/Contents/MacOS/JRWorker
Identifier: com.jriver.MediaCenter26
Version: 0
Code Type: X86-64 (Native)
Parent Process: Media Center 26 [4447]
Responsible: JRWorker [7785]
User ID: 501
Date/Time: 2020-01-27 00:09:56.070 -0200
OS Version: Mac OS X 10.11.6 (15G22010)
Report Version: 11
Anonymous UUID: 6F29A312-A23C-49EF-91C6-07D15822A7A8
Time Awake Since Boot: 55000 seconds
System Integrity Protection: enabled
Crashed Thread: 0 Dispatch queue: com.apple.main-thread
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x000000010ea1f0a4
Exception Note: EXC_CORPSE_NOTIFY