Issue : Can't scroll easily in creative inventory and make player drag the item/tap on item
Expected Results : Can scroll easily in creative inventory and should not make player drag the item/tap on item when scrollling in the creative inventory.
Reproduce issues :
1Open creative inventory.
2.Scroll down the inventory.
3.Then it will make player drag/tap on the item button box instant when scrolling the inventory.(it happen randomly)
Notes : It also sometimes randomly freeze the game when scrollling and tapping off the inventory or picking item from the creative inventory.
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Resolving temporarily as Awaiting Response. Could you try creating a new flat world with "mob spawning" disabled, so that nothing affects the game's performance, and see if the issue occurs there?
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It does not occur when I create a flat world and disable the mob from spawning.So I guess the issue is with mob spawning plus game performance.

Can you upload an example world that is affected by the issue?

Related Issue/Separate Ticket : MCPE-175116
(As what MegaSpud said in the MCPE-175116, he said to create a separate ticket to track the issue. So my report is related with some lag spikes in the game creative inventory.

It happen when I enlarge the creative inventory. Then starting the scroll down it will sometimes cause a bit of freeze and lag.And scrolling down and up isn't smooth at all.

We could not reproduce the issue on our devices.
If this is still an issue, what device are you reproducing this on exactly, what model and OS version?
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Huawei Android 10,DRA-XL9

Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response.
Could you please let us know if this issue persists after the latest update?
This ticket will automatically reopen when you reply.