How can I upgrade to iMovie 10.1.8 on High Sierra?
My iMovie is crashing every time I export any project since recently upgrading to High Sierra.
My copy is 10.1.1 and I understand from other posts such as https://discussions.apple.com/thread/8299452 that I should upgrade to 10.1.8 which is intended for High Sierra but the challenge is how. The app store offers me 10.1.14 for which I need a later OS, and if I sign into the app store and go to purchases, while I do see an 'Upgrade' option, it doesn't do anything, nor is iMovie listed in my options in the Upgrades 'tab'
How can I upgrade and (hopefully) fix my export issue?
MacBook Pro 13″, macOS 10.12