When I used the data type of UE4 to select the panel, there was a constant jitter.
This is the case when I used this function. I recorded these operations into a video.
https://www.youtube.com/watch?v=4g1Xl05SliI&feature=youtu.be
The situation has been going on for four or five days. It has been slightly affected by the use of this function.
The following are some of the hardware information of my computer:
CPU：I7-7700 @3.6GHz
GPU：GTX 1050 Ti @anonymous_user_4d55fe09 4G
RAM：16G
Screen Size：4K