Hello!
When I install PlatformIO IDE for Atom, clang, and LLVM—I have this message! 
Tell me plese, what option we got? Or othe words what’s the problem? 
And atom start in safe mode!
atom --safe
Ok, now i make the “Reset to Factory Defaults”
rename %USERPROFILE%.atom .atom-backup
And install PlatformIO IDE. again!
And again i have the problem! 
X99
4
I know it’s not the solution you ask for, but you should consider using VSCode instead of Atom.
Thanks!
I will think about it 
X99
8
Sure you do! Great job moving to VScode! 
Hi,
I had same issues on Ubuntu and macos. I managed to get rid of the freeze by removing ~/.atom/packages/platformio-ide folder and did a:
apm install platformio-ide@2.6.0
after that atom starts gets platformio restarts and installs the updates to version 2.7.1 (if autoupdate is active) 