Since update, scene editor crashes when I click on ANY object with an instance variable in ANY scene

As above. I updated GDevelop today (it’s set to automatically update). I loaded GDevelop after the update and it now crashes when I click on any object in any scene that has an instance variable. I can not work on my game now at all. This also happens if I drag a new instance onto the scene and click on it before even setting the instance variable. Instant crash. Clicking on objects that do not have variables does not cause a crash.

This version of GDevelop is: 5.6.275 (editor full version: 5.6.275-d01b27dc3a92e44c4d105e9eb0d67f1ae2763b38, core version: 5.6.275-0)

For example, my distanceGuide object has 1 text variable called ‘id’. I have been using this object for years. It is a sprite object with no behaviours or effects. I click on it now and I get the error shown below. I have gone back to version 5.6.274 and turned off auto update.

My game is 2D only.

This should be fixed in 5.6.276