Product and version: FileMaker Pro 18.104.22.168
OS and version: OS X El Capitan 10.11.6
Hardware: iMac 21.5" Mid 2010, 3.06 GHz Intel Core i3, 4 GB DDR3, ATI Radeon HD 4670
Description: When trying to execute anything other than "about filemaker pro" or "preferences", a pop box opens with only a yellow triangle with and an exclamation point inside of it. No way to close out the mysterious error message box, and the application is unresponsive and must be force quit. Previous versions of FileMaker Pro have been installed on this machine with no issues. They have all been removed for the change over to FileMaker Pro 15.
Support has dumped this issue onto Apple saying something is wrong with their software/hardware. Any help would be greatly appriciated.
How to replicate: Open just about anything in the program