1.1.0: DW20 1.7.10 v1.1.1 stuck preparing level after update

[DatJonas01]

Version:
1.1.0

What is the bug:
After updating my FTB Server (hosted on Nitrado) from v1.0.3 to v1.1.1 it doesn't start. That's the log:

[16:06:45] [Server thread/INFO]: Starting minecraft server version 1.7.10
[16:07:36] [Server thread/INFO]: Loading properties
[16:07:36] [Server thread/INFO]: Default game type: SURVIVAL
[16:07:36] [Server thread/INFO]: Generating keypair
[16:07:36] [Server thread/INFO]: Starting Minecraft server on 123.4.5.6:25665
[16:08:37] [Server thread/INFO]: Preparing level "world"​

It's stuck there. What can I do?

Thanks for your help

Mod & Version:


Paste.feed-the-beast.com log:


Can it be repeated:
I've restored the backup and tried to update again, resulted in the same problem

Known Fix:

 

[Trisscar]

Hummm.
Humor me for a moment? Could you try updating to 1.0.4 first? Then if that goes well, try updating that version of the save to 1.1.1.

 

[10pm]

Oh, i've had a similar problem when updating to 1.0.3 and have no idea ho it fixed itself

 

[DatJonas01]

I'll try that out.
Meanwhile I took the save of the world, opened it in Singleplayer (v.1.1.1) and confirmed the missing block thing.
With this save the server at least starts, but instantly stops again. The Log now looks like this:

[18:33:48] [Server thread/INFO]: Starting minecraft server version 1.7.10
[18:34:43] [Server thread/INFO]: Loading properties
[18:34:43] [Server thread/INFO]: Default game type: SURVIVAL
[18:34:43] [Server thread/INFO]: Generating keypair
[18:34:43] [Server thread/INFO]: Starting Minecraft server on 123.4.5.6:25665
[18:35:45] [Server thread/INFO]: Preparing level "world"
[18:35:48] [Server thread/INFO]: Preparing start region for level 0
[18:35:50] [Server thread/INFO]: Preparing spawn area: 0%
[18:35:51] [Server thread/INFO]: Preparing spawn area: 88%
[18:35:51] [Server thread/INFO]: Done (6.379s)! For help, type "help" or "?"
[18:35:51] [Server thread/INFO]: Starting GS4 status listener
[18:35:51] [Server thread/INFO]: Setting default query port to 25665
[18:35:51] [Query Listener #1/INFO]: Query running on 123.4.5.6:25665
[18:36:15] [Server thread/INFO]: Stopping server

Any idea?

 

[Trisscar]

Have you added any mods, including things like Cauldron or other server functionality mods?

 

[DatJonas01]

I have not added any mods.

 

[DatJonas01]

Apparently the Server has a very high CPU usage and is therefore stopped by the host. I'll contact their support and I'll also try to launch the world as a Server on my PC to confirm that.