How to reproduce:
1. Open the “Swappy Shapes” project
2. Open the “MainMenu” scene
3. Enter Play Mode
4. Click in the top-left corner then select “Unlock Everything”
5. Press the “G” key
6. Scroll down to the very bottom of the list
7. Select the bottom-left element
8. On the pallet hover over the first or the second element
9. Select another element
10. Repeat step 7 and observe the pallet

Expected result: The first two elements do not disappear on the pallet
Actual result: The first two elements disappear on the pallet

Reproduced with: 2022.3.19f1, 2023.2.9f1, 2023.3.0b6
Could not test with: 2021.3.34f1 (Could not resolve Package errors)

Reproduced on: macOS 14.2.1 (M1) (by reporter), Windows 11
Not reproduced on: No other environment tested