UMG Drag and Drop stops working in a Packaged or Standalone Game

Drag and drop operations just become broken on packaged builds or launching stand-alone, despite working inside the Editor (PIE). This is a regression from 4.19.2 (CL-4033788).

This issue was reported and tested in 4.20.1 (CL-4233996) and reproduced in Main 4.21 (CL-4299102).

1. Download and open the attached project
2. Package the game or Play in Standalone
3. Click and drag off the boxes in the upper left-hand corner. Repeat this

Results: The first time an component is being dragged works as expected, after the second time they can't be dragged anymore

Expected: To be able to drag widget components every time

How does TextureRenderTarget2D get TArray<uint8> type data?

Why does the REMOVE method of map container remove elements have memory leaks?

What is the cause of the packaging error falling back to 'GameUserSettings' in ue5?

UMG RichText not appear image when packaged

Where can I download the source address of the deployment cotum service associated with the PixelStream plugin?

Do I need to call Destory method to remove components from Actor when Destory method to remove Actor?

How to delete some elements correctly when deleting an array loop?

为什么我的电脑无法安装ue，错误代码一直是IS-IN-BV05,该如何解决

trying to launch uefn and it is crashing and saying pakchunk4522 is courrupt, anyone have the fix for this?

What does the number in the custom node error Material.ush(2153,1-34) mean?