I'm having a strange issue where, seemingly only in the solaris context, any time I try to select a node it flashes yellow to show it has been selected, then immediately deslects itself. This means the only way to delete a node is to right click on it and delete through the action menu, and I can't select multiple nodes to alt-drag to copy them. Anyone have any idea why this might be happening?

Further notes - stage context is doing this. If I create a lop network in the Obj context, it does it too, but NOT if i create a lop network inside a geometry node. The file attached has all three setups for testing.

For context, this is using a non-commercial licence on this particular file. It was created during a class I was teaching. One of my students had this issue with his file on the uni machines. I took my own file home and I have had it happen on my home machine too, in non-commercial mode. I haven't had this issue with any of my other files that I create using my indie license.

Am I missing a check box somewhere? A mode that I have accidentally enabled?