Hi,

After upgrade I can no longer open Mathematica using the Launchpad App Icon - only can launch from Terminal.

I did follow instructions (move /Applications/Mathematica.app aside, Open-q (quit app) Mathematica before preceeding.

The download then upgrade went fine and I was using a simple note taking todo notebook after. Though I'd already saved once or twice, when i hit Open(apple)-s (save) Mathematica 11.0.1 crashed.

When I re-opened I selected "ignore" then it asked me a second question, something like "your newly installed app crashed do you want to validate". Well i don't know which one I picked I can't recall the question totally. It began validating (all 3 gigabytes apparently) and ended with "This app was not downloaded from the App Store so it cannot be validated" (and of course: Mathematica doesn't open).

If I start Mathematica from Terminal I don't get that message. My question is should I re-install? I guess so. But I have no choice to remove either. Anyway - if app validation needs to happen while the app is open "the first time", then it should warn me it's doing that, so that I know to be dainty and delicate and close it before "something happens" and I get locked out.

I did check the md5 of the download, it matched, not a bad download.

If anyone experienced this "crashes while saving 11.0 notebook after upgrade to 11.0.1" say so. And if anyone has idea how to clear that iMac bug I cannot somehow validate it manually, please tell me how to do that. I have no idea where iMac (Safari) would keep such a state file on app status (ie, is it in defaults(1) settings?)

Thank you