Do you have any more information when exactly this crash happens? I'll thouroughly test it when fixing the other issue you posted.

I can reproduce the problem and will fix it. Thanks for reporting this! I don't know why this wasn't noticed while testing this version.

Actually, the status bar can be disabled (games do that usually) and I would probably hide the status bar and the toolbar if I implemented such a mode.

I see – I could add a setting for this.

Which highlight do you mean, exactly? The blue vertical cursor that signals the current position in the text? Or the highlighting of the current line?

Did you try to restart the app or the iPad and see if this helps (as described in my other comment)?

Does it happen with a particular file?

This options already exists: just open the File Properties popover and choose the first entry "Plain Text" as the syntax definition for this file.

This disables syntax highlighting.

That shouldn't happen – maybe it's just a glitch. Did you try to restart the app and see if it works then?

(You have to press the home button to suspend the app, double-press the home button to bring up the list of recently used apps, hold your finger on the Textastic icon and tap on the red "minus" sign to quit the app – or just do a full restart of the iPad)

If that doesn't help: can you maybe post a video so I can try to reproduce the problem?