All blocks disappeared

Running Version 7 SR38 (7.38.24338.17001, 2024-12-03)
All blocks in my model have disappeared. They are not hidden, not on off layers, and not locked. If I right-click on a layer that I know has many blocks and hit Select Objects, I get a message that says “No objects added to selection”. When I go into block manager, they are all still present. If I do Edit/Select Objects/Block Instances, I get the same message. This has happened on several occasions, only to have them randomly reappear a few hours later. Totally frustrated. How the hell do I fix this?

I found that if I redefine any block from it’s source file, ALL blocks reappear. WTF?

I’ve seen a similar behavior after a user closes Rhino with the block editor open.

The solution has been to disable the block edit plugin, close Rhino, open and enable the plugin again. Close and open Rhino one more time. Not sure if this process will help in your case, but worth a shot.

I haven’t used used block editor at all.

Can you send us a file in that state? Please put a link to this thread in the comments.