Text wrapping is sometimes broken

[xezo360hye]

Describe the bug
When text on slide is two long, the slides tries to wrap it, but sometimes it does that inaccurately and removes one character as you can see on screenshot (look at first line on the first image and line 3 on the second). To clarify, this happens not only with - dash, but also happened with word To (the o was not displayed)

To Reproduce
Steps to reproduce the behavior:

1. Create a slide with long input
2. Start slides
3. Check for the error

Expected behavior
Text should be wrapped without cutting characters

Screenshots
Maximized window:

Normal window:

Desktop (please complete the following information):

• OS: Arch Linux [btw]

Additional context
This is not a bug with konsole or whatever, the same behavior is seen in TTY