Counts wrong in downloaded collections

I have about 20 downloaded collections, and I’ve noticed that the counts sometimes show slightly less progress than I actually have. For example, it says I have 1 sentence to review, but I try to review it and nothing’s there. Or it says I’m playing 99.85%, but I try to play new sentences and there aren’t any.

The counts on the website appear to be correct. And I found that the counts get fixed in the app if I delete the downloads (and optionally re-download them). So there’s a workaround, though it’s a bit annoying.

One thing that might be contributing to this is that I often have to close the app and restart it, because that’s the only way I know to get it to switch from online to offline or vice versa. Is there a way to tell the app to switch modes?