I am currently experiecing issues with TeamViewer 12.0.78517 running on Mac OSX Sierra 10.12.5.
When I try and connect to my easy access computers or any remote computer for that matter, the application quits suddenly and opens an uncontrollable session on the remote computer.
The app then asks to generate an error report (See below) and then relaunches.
It is happening accross all my personal and work computers.
When trying to connect from my personal MBP to my work Mac Pro, it states that it is ready to connect, but then takes about 3 min before it says "Authentication/Connection rejected".
After the above, the app then displays that TV is no longer running on remote computer.
I have done the generic troubleshooting and multiple uninstall and re-installs.
Is there anyone else experiencing the same issue with TV 12?
Is there a way to possibly role back to a previous version that does not have this bug?
Process: TeamViewer 
Version: 12.0.78517 (1)
Code Type: X86-64 (Native)
Parent Process: ??? 
Responsible: TeamViewer 
User ID: 501
Date/Time: 2017-06-15 10:29:35.291 +0200
OS Version: Mac OS X 10.12.5 (16F73)
Report Version: 12
Anonymous UUID: 84AD9F85-2B4F-1325-F46E-E7CFBC3E35AE
Time Awake Since Boot: 66000 seconds
System Integrity Protection: enabled
Crashed Thread: 17
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000008
Exception Note: EXC_CORPSE_NOTIFY
Termination Signal: Segmentation fault: 11
Termination Reason: Namespace SIGNAL, Code 0xb
Terminating Process: exc handler 
VM Regions Near 0x8:
__TEXT 000000010b66a000-000000010e065000 [ 42.0M] r-x/rwx SM=COW /Applications/TeamViewer.app/Contents/MacOS/TeamViewer
Application Specific Information:
Languages: (en-US, en-ZA)
I see you have a Mac Pro, miine started doing that when I migrated from a MacBook Pro to a Mac Pro.
This seems to be correct so far, on my MacBook pro it works ok, on my Mac pro, it crashes. Any help?
I have the same issue with my Mac Pro. I can't get a connection to or from a Windows PC. With my Android phone it does connect but the error message still pop ups.
Any help would be appreciated
MAC OS 10.12.5 (16F73) .... kind of the same issue since TeamViewer12 (latest version).
When I remotely connect I get the info "TeamViewer quit unexpectedly".
If I choose reopen, the message emmediately pops up again. The same with ignore.
If I just leave the massage and move ist to the side, Teamviewer seems to work fine.