[Bug] `allow_back_on_death` feature seems to sometimes silently fail

[John-Paul-R]

source #99 (comment)

[RockZe]

#99 (comment)

After your comment, I decided to check it out on the new Minecraft client profile, which has no mods except essential_commands-0.33.0-mc1.19.2.jar and fabric-api-0.76.0+1.19.2.jar. Version 1.19.2 with loader 0.14.18

Of course I made allow_back_on_death=true. But unfortunately, when trying to return to the place of death in the new world, I get an error. Given this, I'm still inclined to believe that it's not the incompatibility of mods, but most likely some kind of error of the /back command

At the same time, if I teleport by command, or between home or warp, then the back command works fine!

[John-Paul-R]

Same issue happening on 1.19.4

https://discord.com/channels/513219024927326211/857077956336943154/1113859028066504825

[John-Paul-R]

have a reported working configuration with

MC 1.19.2
Fabric Loader 0.14.19
fabric-api 0.76.0+1.19.2
EC 0.33.0

https://discord.com/channels/513219024927326211/857077956336943154/1113871422536810640

[John-Paul-R]

People I need to ping when I fix this:

535613178655145984
799216016080240640
1077257387934756975

[John-Paul-R]

Another repro:
https://mclo.gs/h6cS1Aa

[John-Paul-R]

@arnokeesman correctly identified the root cause of the bug. (Thanks again!)

The logic for keeping PlayerData in-sync was early-out-ing if a World Spawn was not set (IOW running /spawn set is a temporary workaround).

I'll be looking to release a version with a fix today.