As of today, certain UI elements keep repositioning themselves. I'm unsure exactly what causes it, but I noticed it immediately upon logging in today. I manually adjusted them back, and twice since then they have moved again. My layout is saved under slot #1 and that saved layout also has the UI elements in the wrong place if I try swapping back to it from another layout.

My best guesses are that it is doing it after exiting an instance, or loading into an area. Everything is in place, and then I notice after a loading screen that things have moved. When it happens I have not touched the HUD layout menu at all.

The specific elements that are moving unintentionally are hotbar 7, hotbar 8, hotbar 9, and hotbar 10. They are all located along the left and right edges of the screen, with #8 and #10 also along aligned along the bottom. They are a mix of 1x12 and 2x6 arrangements. No other UI element is moving at all. It almost looks as if those 4 elements are being placed where they would be if I had changed to a smaller screen resolution, but I have not made any resolution changes and other elements near the edges do not get moved.

Here is what my UI normally looks like (with hotbars labelled for convenience since I hide hotbar numbers):


And here is what it looks like after the UI elements have moved on their own: