I can scroll now, so it must have been stuck for some reason. I'm pretty sure I quit and relaunched the app, but this morning I restarted the iPad. Maybe that did it. Anyway, the problem is gone for now.
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This is the community forum for my apps Pythonista and Editorial.
For individual support questions, you can also send an email. If you have a very short question or just want to say hello — I'm @olemoritz on Twitter.