One question, have you tried to authorize Amplitube with a keygen before? I tried it and maybe that´s the problem, there may be a cache that´s making trouble with the authentic serial number. Moreover, I created a new user in my macbook, installed Amplitube there and it worked perfectly after authorizing it, the problem is that I need to user Amplitube with my user, where I have all my plugins and softwares installed. I don´t think iCloud has anything to do with the problem. The problem with disabling sync with iCloud is that I would lose lots of important data in my macbook that I use I tried several things, installing and authorizing Amplitube offline but without disabling iCloud sync and the problem remains the same, without authorization it works perfectly, when authorizing it crashes. This program is a guitar and bass tone studio for Mac/PC that works as a standalone application and plug-in for your favorite DAW.

The last thing they told me is that if I was using iCloud, to try taking Amplitube from there, the pplications folder is not synced with iCloud, the documents folder is synced with iCloud and inside that folder there is an Ik Multimedia folder. I am currently interchanging several messages with Ik Multimedia´s support, I tried lots of things and sent them the crashes. Includes 64 items: SPLIT BULLET, The Dew, Costumenaut, Project Rhombus - Steam Edition, Golden Hornet - Steam Edition, Ctrl CV - Steam Edition, SUPER FLAIL - Steam Edition, Watching Delusion, Colorzzle, in My MIND., Shadow Play, Blindia, Hoyeonjigi, Frantic Dimension - Steam Edition, Rolling Bird - Steam Edition, Steel Alcimus - Steam Edition, Offendron Warrior - Steam Edition, Dream Rose, Bouncing Hero, Bouncing Hero Soundtrack, Pentasma - Steam Edition, Raindrops, Hornet Virus: Steel Alcimus II - Steam Edition, AshenForest, AshenForest Soundtrack, The Spike, The Spike DX, The Spike Soundtrack, Everslash, Everslash Soundtrack, Forsaken Flesh, Xentron Attack - Steam Edition, Hero Allstars: Void Invasion, LUNA - Steam Edition, Flowers Blooming at the End of Summer - Steam Edition, Flowers Blooming at the End of Summer Soundtrack, Flowers Blooming at the End of Summer Digital Wallpaper, Flowers Blooming at the End of Summer Design Works, Causality, Causality Soundtrack, ASCENXION, ASCENXION Original Soundtrack, ALONE - Steam Edition, Devileader - Steam Edition, The Tower of Worth, A.R.M.Click to expand.Exactly the same happened to me, I have an M1 Pro macbook 14 inch and purchased Amplitube 5 a few days ago.

AmpliTube 5.6.0 for mac instal