Hello!
I ran into the lack of PlatformIO in VScode this morning. Yesterday everything was OK.
For a long time I could not understand what was the reason…
It turned out that the latest update PlatformIO 1.9.1 did not work in VSCode.
I downloaded the older version of PlatformIO 1.9.0 and everything returned to their places.
I hope the developers read this post and fix it.