Just upgraded to build 3192 on MacOS 10.14.2. When using Terminal, I go to folder that I want to open in sublime. I type subl . to open the contents of the folder in Sublime Text. Sublime opens but no files are displayed in sidebar. I also try to open a file using Command-T and it doesn’t provide any files for that either.
I also tried hiding sidebar and then displaying it again. Nothing shows up in sidebar.