Gotcha!
I went ahead and tried it with different fonts and insertHyphens true/false for each but it resulted with the same results
I also took some screenshots to see how much the caret would move when the "smaller space" appeared, with the settings I got (Middle Anchor, Center Alignment, Size 64, Resolution: 1920x1080) it only moved 1 pixel to right (2 pixels with Left Alignment) so It is a very small size that seems to be added
It's not an urgent issue on my end just wanted to let you know :-)
Looking forward to the update!