Basecamp 4.6.3 - Instant application crash on right click

I am trying to work with routes, and any time I right click anywhere in the application (My collection, clicking on an existing route, right clicking the device to send files, etc).

I've re-downloaded and reinstalled, same deal. I can do most things other than right clicking - manipulate the map view, use the menus, etc, but any time I right click it instantly crashes. Crash Reporter data is below. I'm running OSX 10.12.4. Any insight would be great, because I can't really do most of what I'd like to do with my new Edge 1000.

Process: BaseCamp [14977]
Path: /Applications/Garmin BaseCamp.app/Contents/MacOS/BaseCamp
Identifier: com.garmin.BaseCamp
Version: 4.6.3 (4.6.3)
Code Type: X86 (Native)
Parent Process: ??? [1]
Responsible: BaseCamp [14977]
User ID: 501

Date/Time: 2017-04-12 21:37:48.913 -0400
OS Version: Mac OS X 10.12.4 (16E195)
Report Version: 12
Anonymous UUID: 29EAC0A6-0D00-9C92-72CF-65C7A2FED164

Sleep/Wake UUID: 38A7A551-E3D1-4C6B-B9FC-7E61593F854F

Time Awake Since Boot: 490000 seconds
Time Since Wake: 5200 seconds

System Integrity Protection: enabled

Crashed Thread: 0 Dispatch queue: com.apple.main-thread

Exception Type: EXC_BAD_INSTRUCTION (SIGILL)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Termination Signal: Illegal instruction: 4
Termination Reason: Namespace SIGNAL, Code 0x4
Terminating Process: exc handler [0]