I am having this issue where one of my particular file is not opening on a particular computer only. I tried opening that file on a MacBook Pro on Muse 2015.2 and it's working there, but not on iMac 27" with the same Muse version. I can see the plan view but it's just loading after that. The rainbow loading icon is just spinning and spinning. I have to force quit the software every time. I tried reinstalling Muse, but no luck. The file seems to be in good shape as it is working everywhere other than the iMac. Please help me solve this issue.
Update: This has something to do either with the network or creative cloud. I was just messing around with all the possibilities and I turned off the internet and open the file and it worked. Then, I turned the network back on, reopened the file and the loading icon starts spinning again. Then, I tried another thing, I signed out of creative cloud and this time the file is working with the network on. So, I guess I'll have to keep it signed out.
Could you please try creating a new admin profile in your iMac - How to Add Administrator Accounts to Your Mac (OS X) ?
Uninstall and reinstall Muse into the new user profile, and see if the file launches.