When I go to my downloaded packs, a couple say they have updates available, but when I click update then nothing happens. It doesn't start downloading or anything. Also, when I'm playing single player, I get a lot of lag where it takes a few seconds for blocks to disappear or be placed. I have never played multiplayer so I don't know if it happens there.
Thank you for your report!
However, this issue is Invalid.
Please put only one bug report in each ticket. It is very difficult to keep track of bugs when they are not in their own tickets, and it is easier for you to make multiple tickets than for the mods to separate them.
The first issue is MCPE-57377.
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