@domhnallohanlon,
It looks like V253 rolled into production. The design view of my screen does not match the component properties. Notice that the list viewer component properties are still correct (Y=207) but the position on the designer screen is wrong. (not WYSIWYG)
Here is a screen capture demonstrating that the screen initially renders correctly, then it re-arranges the components into the upper left corner
Interestingly, if you go frame by frame, you can see the second screen rends correctly, then the second screen actually shows the MAP screen contents, it renders again correclty, then finally it renders everything in the upper left corner.
Also, was is it intentional that there is no longer a link to the community or the thunkable documentation? I only see video tutorials.