EPG stands for electronic program guide, the grid that shows what's airing right now and what's coming up later on each individual channel in your list. IPTV Smarters Pro loads that grid from a separate data feed than the one that streams the actual video, so it's entirely possible for channels to play back cleanly while the guide itself sits blank or stuck loading indefinitely on screen. Play a channel first, before you touch any setting at all. If the picture and sound both work fine, the fault is isolated specifically to the guide data, and any changes you make to playback settings simply won't touch that separate problem.

The most common cause by far is a guide refresh that simply hasn't run yet on the provider's side, since some providers update EPG data on a fixed schedule rather than instantly the moment you open the app. A second common cause is a missing or mismatched guide source URL, which some Xtream Codes setups fetch from a separate address entirely than the one used for the channel list itself. A third thing worth checking is scope: look at whether every single channel's guide is blank, or just one group's, since a single blank group usually points at that one provider's feed rather than the app itself or your connection.

1. 1Guide not refreshed yet on the provider's schedule
2. 2Guide source URL not set or mismatched with the channel list
3. 3Only one channel group affected, not the whole list

Back out of the guide screen entirely, wait a few seconds, then reopen it fresh from the main menu rather than just refreshing in place. If the guide populates correctly on the second attempt, the first load simply timed out waiting on a slow data pull from the server, which is common on a loaded connection and isn't really a setting you can permanently fix on your end. If it stays blank even after several separate attempts like this, that's a much stronger sign the guide source itself isn't configured correctly somewhere in your playlist settings.