After 1.16.100 update, the chunks are loading very slow. Whenever I try to fly with elytra, I constantly hit invisible walls. The full expanded maps are filled very slow and often some gaps remain after I fly through the area. This issue never happened before the update.
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Thank you for your report!
We're actually already tracking this issue at MCPE-85614, so I will resolve and link this ticket as a duplicate.
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