Keyboard features missing when writing a comment

**Describe the bug**
When writing a comment on mobile-app, certain features of the keyboard app(no matter which keyboard app) stops working. Such as: autocorrect, spellcheck and backspace(to delete letters). The functions seem to vary on what works and what doesn't work. For example, backspace does not work on Swift keyboard app (by Microsoft), whilst it does work on Gboard (Googles keyboard app). However, autocorrect seem to not work on either of them.

**To Reproduce**
Steps to reproduce the behaviour:

1. Go to any post
3. Click on comment button
4. Start typing
5. Attempt to use backspace to delete words.
6. See error

**Expected behaviour**
Expect the autocorrect and all other functions of the keyboard app in use to function with all of its functionality as it does elsewhere.

**Video recording of this happening**
https://github.com/user-attachments/assets/984b87fa-6508-44c1-b1ab-5cc985a5e569

**Smartphone Information):**
- Device: Pixel 7a
- OS: GrapheneOS:latest
- Version 2.17.1

**Additional context**
Voyager app installed via Fdroid.

This bug was also discussed over at Lemmy, where multiple people mention that they have the same issue, also with other keyboard apps. The discussion can be viewed here: https://slrpnk.net/post/13461230