Memmy - An iOS client for Lemmy

I'm really enjoying Lemmy and Memmy so far, but even after downloading yesterday's update, I'm constantly having to re-enter my password.

If I force close the app and re-open it, I need to enter my password. If I just minimize the app for a minute or more, I have to enter my password when I come back. If I don't enter my password, it doesn't show any of my subscriptions.

Is there a fix I'm overlooking? Again, I downloaded yesterday's update and double-checked to make sure there's not another update available (as of right now, there's not). I'm using Lemmy.world if that makes a difference.

Thanks for any help!