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The versions are all current:  Textastic 6.4.1 on a 10.5" iPad Pro running iOS 11.0, but I think I've seen it on my previous iPad Air II (and corresponding Textastic version).


Tapping on the editor should work, but doesn't. I've tried changing documents, and other things, but the only thing that really works is quitting and restarting Textastic. I do have a lot of other stuff open at the time, though. One app is frequently open: Prompt 2, an SSH client from Panic. I can't really say that it's been open every time I've seen it, though I think it's likely, since I usually work with them together.


It's only mildly annoying, which is why I have never bothered to mention it previously, but it would be nice to avoid it.