Opening the full guide grid pulls program data for every channel currently visible in your list at once, not just the one you're watching. On a very large channel list, that single request can time out or stall before it finishes loading, which shows up as an endless spinner rather than an error. Hiding channel groups you don't actually watch shrinks how much the guide has to pull in one go, and it's the most direct fix available inside the app itself, ahead of restarting or reinstalling anything. A smaller, more manageable request finishes faster and rarely times out.

Player apps hold the entire channel list in memory while running, and rendering the guide grid on top of a very large list adds another load on top of that. Apps like this tend to destabilize once a channel list runs past roughly 18,000 visible entries, and opening the guide is often the exact moment that extra load pushes memory past what the device can handle. The fix is the same as a slow-loading guide: trim the visible channel groups down to what the household actually watches. Lower-memory devices, like older streaming sticks, hit this ceiling sooner than newer hardware does.

This usually means the channel order inside your playlist and the order the guide feed expects have drifted out of sync with each other, so the guide renders program data against the wrong row. Refreshing the EPG data alone often doesn't fix this, because the mismatch is in how the two lists line up, not in the data itself - refreshing the playlist and the guide together tends to realign them properly. If only a handful of channels show mismatched program info while the rest look correct, that's still the same underlying cause, just limited to channels whose position shifted most in a recent update.

Smarters Pro caches guide data locally so it doesn't have to redownload it constantly, and that cache only gets replaced when you trigger a refresh - it doesn't automatically roll forward on its own as the day passes. If the grid looks frozen on one block of time no matter how long you leave it open, force a manual guide refresh from settings rather than restarting the app, since restarting just reopens the same stale cache. Leaving the app open longer won't help either, since the cache doesn't refresh itself on a timer - only a manual trigger replaces it.