Unable to enter the caves after the recent update

I have the same problem.

For your custom server setup, what is the shard name for the caves? You can find this in the cluster's cave's server.ini file.

Quote

[SHARD]
is_master = false
name = Caves

If the name is not "Caves" it will not find the correct shard to have the cave entrances connect.

6 minutes ago, JesseB_Klei said:

For your custom server setup, what is the shard name for the caves? You can find this in the cluster's cave's server.ini file.

If the name is not "Caves" it will not find the correct shard to have the cave entrances connect.

it is like this for us

[SHARD]
is_master = false
name = Caves

and the cave entrance is closed but enterable with console cmnds

4 minutes ago, Cliffford W. said:

it is like this for us

[SHARD]
is_master = false
name = Caves

and the cave entrance is closed but enterable with console cmnds

Could you send me a copy of your world in a private message?

A follow up question for those in this situation do you all have the mod Gem Core in use? The author has been notified of needing to update it for a function signature change and is on it. I want to see if there might be another mod doing a similar thing.

Hello, the name of the shard is valid (Caves). As for the Gem Core, yes, we do have it installed.
Additional info: we used it's Seed feature for both shards.

This is happening to me too!

this happening to me now, i create 3 new world and the cave still be block like this (i already enable the cave)

I fixed it.
I disable "API Gem Core" mod and the cave is open. 

1 hour ago, Vitamin Hihi said:

this happening to me now, i create 3 new world and the cave still be block like this (i already enable the cave)

 

I have the same issue but with leaving the caves, I am stuck down there and cannot take the stairs. I believe it's because of the latest update, the only thing of note I did was to do the memory thing in the Archives, but if you have issues as well, it's probably not relevant to the issue. I do have API Gem Core as a mod.

Edited September 19, 2025 by Dwight34

No fixes yet?

following this bug because i have some dependencies on gem core but do not want to rush the team on the weekend

I have the same problem too. But I use the Island Adventures - Core mod. I'm not sure if the executable logic of this mod is similar to Gem Core.

1 hour ago, Iceet said:

I have the same problem too. But I use the Island Adventures - Core mod. I'm not sure if the executable logic of this mod is similar to Gem Core.

yeah i believe it is similar. IA used to depend on Gem Core, but then they made their own core mod so it's not unlikely

3 hours ago, _mylilsunshine_ said:

yeah i believe it is similar. IA used to depend on Gem Core, but then they made their own core mod so it's not unlikely

I have set up four worlds. Ironically, if I set the Master World as Shipwreck instead of Forest, this bug would not exist. Due to the fact that the Master World typically contains underlying mechanisms, it is possible that this update has disrupted something.

On 9/18/2025 at 4:46 PM, JesseB_Klei said:

Could you send me a copy of your world in a private message?

A follow up question for those in this situation do you all have the mod Gem Core in use? The author has been notified of needing to update it for a function signature change and is on it. I want to see if there might be another mod doing a similar thing.

This is happening on at least 1 official klei server (US East) so unless Klei is also using mods then its not the related to the Gem Core mod. 
 

On 9/20/2025 at 8:39 AM, I Heart Popcorn said:

This is happening on at least 1 official klei server (US East) so unless Klei is also using mods then its not the related to the Gem Core mod. 
 

The Klei Official servers is another issue with a configuration setting that was resolved.

the Gem Core mod was updated recently so it should be fixed for most people