My browser / operating system: Windows NT 10.0, Chrome 151.0.0.0, No Flash versions detected
On this project (I've only ever seen this glitch happen there) when it loads, you can see the palette loads, then the blocks bunch up, then the palette just disappears entirely. It appears to have been caused after the latest editor update. Somebody else reported it happens too. Wondering if this is a known glitch or if it is new. Also, sometimes the blocks bunch up, but don't disappear.

bump

There is a definition for the empty custom block in the project, that is causing it

define <::ring>

weird, never knew that did that before