Pablo

Can confirm in 1.21.8

I had the same issue as well. I tried the suggested workarounds to no avail.

So I just used the CurseForge app instead which has a copy of the Minecraft launcher that works perfectly and because it's the vanilla launcher you can make your own profiles for it like Fabric or plain vanilla Minecraft.

The main difference between the Minecraft launcher of Forge and the stand-alone launcher is where the files are stored. In my case, Forge files are stored in my documents folder for easy access. I tried using MultiMC but found that CurseForge was just more intuitive. 

Any updates on this bug? Will it be fixed for 1.18?

Yes

I've just made another world and tried it in creative and if you try to level a cartographer to level 3 it happens the same, but it doesn't happen when you try with other types of villagers

I reported the same issues some time ago, with images included: BDS-10629

You can vote on my report and I will vote on your incidence so that they pay attention to this problem.

How???

I'm using online-mode=false without issues, and friends can connect to my server without xbox account. Do your children's cousins connect via LAN or internet? Do they receive any error when trying to connect?

Kill all mobs with this command:

kill @e[type=!player]

Look at this message:

[2020-05-20 19:43:26 ERROR] Network port occupied, can't start server.

It's saying that the game network port is occupied for other process. I think you have the server open twice. One of the processes is in the background and hidden, using the database. When you try to open the server a second time, the application cannot open and decrypt the database because it is being used by the first one. Try to restart the VM (rebooting linux), so that any possible hidden session of the server is closed. You can also check in the running processes that the bedrock_server application is not running twice.

We tried to leave the game loading to see if it eventually opens. Sometimes after 5 minutes it opens. Others, we have to wait more than 45 minutes (!!!) to be able to play.

Yes, I can confim, many gamers stop to playing in betrock server because it hasn't that important feature.

In the Windows version exactly the same happens.

I had this problem with an Addon, yFarmcraft, many chickens spawning in the same zone and a terrible lag. I fixed it deactivating the addon.

I,ve uploaded two videos where I realized of an exception (see videos attached). When a piston is powered directly with a redstone torch (that torch is on the previous block), piston will pull back the slime block when the torch is removed. But if the piston is powered by redstone dust (it doesn't matter what power that redstone dust) the piston won´t pull back the slime block when redstone is powered off.

Please, if I don't explain myself well, see de videos attached. I know my english is quite bad.

Zi-Wen Lin, it could be a logical reason, but I would like to have a direct answer from Mojang. An explication of why they consider it works as intended after two years treating it as a bug.

(sorry if I've written somethign wrong, my english is quite bad)

But if it works as intended, why did they consider it as a bug from 1.8 snapshot until now? Almost two years have passed since then...

I liked singleplayer more when mobs see you immediately.

I can confirm in 1.8.8. A cat teleported to me suddenly. I had bred a couple a few minutes before.

@Shi-Ron Morman I totally agree with you. I don't mind if beds have a worng texture, or if there is a shadow bug. This kind of bugs don't affect gameplay at all. But this issue...

In my opinion, this is one of the most important bugs in Minecraft. It affects gameply directly. Minecraft 1.7.4 was released almost a year ago... But the problem still persist. Maybe we have to open a new bug report.