Sometimes (it's very random) media from scheduled album is posts not fully, it can be 1 or 2 missing media (photos or videos). For example I schedule album with 10 photos and after it posts I see only 8 or 9.
This is API issue because I get that problem not only on Telegram for iOS but on Telegram Desktop too. For Telegram Desktop only app restart helps but for iOS sometimes restart doesn't help and I need to "Reset holes" in debug settings.
This issue appear at least since 7 October 2019 (first post about it in messages with my friend have this date).
Steps to reproduce
Schedule album with 5-10 media
Wait until it posts
If random at your side you will see that not all media from album is showing
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