Unity external script editor won't change

just found your post because i had the same isue.

this fixed it for me:

search on your pc for code.cmd and delete it, it doesnt seem to effect anything and you can swap editors again

In case it helps anyone... to get out of this myself I:

• Opened Unity project

• Deleted the VSCode asset

• Closed Unity

• Re-opened Unity project

• Changed my external editor

• .... the change finally stuck.

And I was so close to finally trying VSCode ... forget that!! =/

Related:

• https://forum.unity.com/threads/frustrating-editor-doesnt-save-my-external-script-editor-preferences.319803/

• https://goo.gl/JsvdCj

PS: Sorry for formatting. Is it me or does the Unity comment editor feel/behave/work like it was built in 2001? Yikes...

Close and re-open the script works for me.

Cheers!

Still have this issue with 2020.1.0.b13

My fix: I had to manually edit the standard program for opening .cs files in windows for uity to finally recognize VS2019 as the default editor. Even though I had changed it in preferences.

One posibility that worked for me:
1. Edit > Preferences > External Tools & change to your script editor (Visual Studio Code for me)
2. File > Save Project
This persisted the setting for me,One posibility that worked for me:
1. Edit > Preferences > External Tools & change to your script editor (Visual Studio Code for me)
2. File > Save Project
This persisted the setting for me