Count the series rather than just the current tablet
A tablet showing only a few saved episodes may still encounter Episode Limit Reached. Before deleting unrelated films or reinstalling the app, identify the series named by the message and ask which other signed-in devices hold its episodes. The relevant count may extend beyond the screen currently in your hand.
Read the series-specific rule
HBO Max’s UK download help says some series are limited to twenty-five downloaded episodes at one time across all mobile devices. It tells viewers whose current device has fewer than that number to check other phones and tablets signed into the account. This is distinct from the subscription’s general download allowance, so unused overall capacity does not necessarily resolve a particular series limit.
Work through a shared travel example
Suppose two household tablets already hold episodes of a long series and a third phone is being prepared for another viewer. Make a private list of which episodes remain needed on each device before deleting anything. Removing a watched episode that nobody needs may be sensible; erasing another traveller’s whole prepared library would be a much broader response than the series-specific problem requires.
Verify the intended replacement
After an agreed selective removal, try the actual needed episode again and confirm that its download completes. A successful start is not yet evidence that the file is ready for disconnected viewing. Keep the series limit separate from storage capacity, expiry and the account’s general plan allowance. If the message persists, report the episode and device context through HBO Max support without sharing passwords.
Questions, answered
Can the limit be reached when my device holds fewer than twenty-five episodes?
HBO Max says the series limit counts downloads across the account’s mobile devices.