Hello. I have installed the latest H 18.596 and Sublime Text 4 (on windows 10). For some reason in this formula I cannot use Sublime as an external vex editor anymore. If I use "Alt+e" to open the external editor Houdini spits this in console:

Failed to run C:/Program with error 2: The system cannot find the file specified.
Argument list:
0: C:/Program
1: Files/Sublime
2: Text
3: 3/sublime_text.exe
4: C:/Users/User/AppData/Local/Temp/houdini_temp/hfs4872-12.tmp.vfl


Houdini 16 .5.996 is working with the same Sublime 4 just fine

Looks like there might be a bug there. I think the issue is that the filepath of sublime has whitespaces in it, which are causing issues.

Additionally, the log seems to think you want to use Sublime 3, not 4. Did 3 happen to get uninstalled when you updated to 4 by any chance? That could explain why it fails on 18.5 (since it was configured to use that version), and in 16.5 it hadnt been configured yet which made it pick up the right version.

Try reconfiguring what editor is used when you press Alt+E. Edit>Preferences>Set External Text Editor