This happens on consoles running in 4k so DPIScale would be 2x.
The character between lines is just a newline (Shift + Enter in the text field in editor), the text is set with SetText, possibly a frame or so after the text block is constructed.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-140016 in the post.
| 2 |
| Component | UE - Editor - UI Systems - Slate |
|---|---|
| Affects Versions | 5.0 |
| Created | Jan 24, 2022 |
|---|---|
| Updated | Dec 15, 2023 |