Problem- All blocks in the list below that are supposed to have moving textures, are frozen. The textures are completely frozen.
How to reproduce- Make a new world in (the) Preview(s) or other version(s) in the Affects Version/s and place any block or item that has a moving texture. You can see that they are frozen.
Expected Result- All blocks in the game that are intended to have a moving texture should have a moving texture!
System Bug Was Experienced On-
Operating System- iOS 15.4.1 and 15.5(latest as of 20/Apr/22)
Model Number- MHC43LL/A2111
iPhone #- 11
Affected Block(s)-
Nether portals
Water
Lava
Fire (Normal & Soul)
Respawn anchors
Magma blocks
Stonecutters
Prismarine
Lit Smokers
Lit Blast furnaces
Top texture of a downward bubble column
Middle texture of a downward bubble column
Outer texture of an upward bubble column
Middle texture of an upward bubble column
Water and lava cauldrons
Soul lanterns
Lanterns
Sculk blocks
Sculk veins
Related issues
is duplicated by
relates to
Attachments
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Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response.
Can you please provide details about the device you experienced this issue on, namely its model and OS?
This ticket will automatically reopen when you reply.
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Here are the details-
Operating System- iOS 15.4.1 (latest)
Model Number- MHC43LL/A2111
iPhone #- 11
Thats It!

This is also affecting bubble columns, with some unexplained exceptions. iOS 15.4.2, SE3. Adding a video clip of a frozen bubble column.

I have the same issue. Once I updated to 1.19.1 all of the water and lava animations froze. I play on a iPhone iOS 15.

iPhone 11 running iOS 14.4
What's strange about this bug is that under certain resource packs certain animations tend to return like water and lava, and in other cases things like prismarine, magma, and sculk. I'm just gonna guess it's a internal resource bug that depending on certain packs that are really for Addon resource support, some tend to render the blocks correctly again.
Update: This seems to become more of an issue the longer it goes on as sculk sensors, sculk shriekers, and both normal and soul fire are under effect after the latest update (1.19.10) dropped, and weirdly this wasn't a thing that seemed to happen in Preview for these blocks as far as I saw in there, so it's hard to tell if it's a rendering bug or internet-based bug of some sort.
09/02/22 - As I have access to the IOS Previews, as of the one that dropped yesterday being 1.19.30.25, the animated texture bug seems to be gone now, as I realized all animated sculk blocks working, fire, and all other animated blocks to function normally once again. In the changelog it is classified as "Fixed an issue with flowing Lava and Water textures not animating on some iOS devices", which makes me consider it was either those were the primary ones they were after and those were solved in the process, or it was fixed in the background as it was noticed to be linked to the water and lava being bugged. As this is a Preview and only one person confirming this, there is a chance this is just undone for a certain IOS version or something else, but if it does get confirmed by other iOS Preview users and is functioning this way in the official game in 1.19.30 once that is launched, then it'll hopefully mean this bug is potentially solved. Just hoping it stays like this and it does solve the issue for everyone once it's fully confirmed in the official version launch in the next few weeks whenever that is.

Confirming problem occurs on iOS and not Android while playing the same realm.

Yes, this seems to be an occurring bug on iOS devices.

I can NOT reproduce this
1.19.2 on iPad Pro 2021 iOS 15

Thanks for the post - this is a good compilation of animations that I've noticed not working (noticed water flow animation not working as well as fire) and definitely works as the best origin post for this bug.
That being said I can confirm I have also experienced this bug as well - iOS 15, iPhone 8, Minecraft version 1.19.20.

I can't reproduce this.
1.19.22 on Xbox One S.