Not all maps display correctly

[rubennp91]

Describe the bug

Having lots of maps creates issues with rendering in Bedrock edition. See image below.

In this server, we have thousands of maps we use for a photo exhibition. Maps that were put in place first look okay, but it appears that as more maps are put in, they disappear.

This is not consistent, sometimes some maps appear, sometimes no maps appear, sometimes its ones sometimes its other ones. This seems to affect world rendering too.

To Reproduce

I have no idea how this can be reproducible other than our specific world. We have about 22000 maps that we have put in for this exhibition, so I guess:

1. Create Java server
2. Install Geyser
3. Put in 22000 different maps

Expected behaviour

Maps will not be correctly displayed.

Screenshots / Videos

No response

Server Version and Plugins

https://mclo.gs/vOpZF7a <- Logs
https://mclo.gs/vOpZF7a <- Debug logs

Geyser Dump

https://dump.geysermc.org/OOGXFIzpEXRYJgx4Iw76ogYkOSpThwfT

Geyser Version

2.6.0-b742

Minecraft: Bedrock Edition Device/Version

1.21.50

Additional Context

If you need to join the server, need any more logs or feedback, I'd be happy to provide.

[onebeastchris]

This might just be a Bedrock client limitation on the amount of maps it can display - not sure what we can do here.

[rubennp91]

Since I could not work around this, I made a Java server and a separate Bedrock server. For that, I converted the Java world files to Bedrock and they are displaying correctly in Bedrock singleplayer as well as server. So I can confirm it is not a clientside limitation.

I understand I've given you not much to work with. If you need me to send you the whole server files or anything similar I am able to do that.

[onebeastchris]

all 22.000 maps displayed properly on bedrock? damn, that is impressive
Sending the java world files as a .zip would help to reproduce this issue, and hearing that it works on "just" Bedrock is also very helpful.

[rubennp91]

Here it is, let me know if I can help with anything: https://we.tl/t-SIPkbdOqVV

[onebeastchris]

Best guess, this is due to the way chunks (and block entities) are sent - BDS uses the subchunk system, which is more performant than the current system used by Geyser. This is still a to-do on our end, as it requires more caching of chunks.