Seems this is a small error with Godmode's Observatory rooms when they replace Dice rooms:

"MC_POST_NEW_ROOM" from "Enhancement Chamber" failed: ...th/mods/enhancement_chamber_3486533759/scripts/icons.lua:20 : attempt to index a nil value (global 'data')
Stack Traceback:
...th/mods/enhancement_chamber_3486533759/scripts/icons.lua:20 : in function 'roomIconUpdate'
...th/mods/enhancement_chamber_3486533759/scripts/icons.lua:65 : in function at line 62

I still encounter rooms with pits on the middle preventing access to the boss rush, for example "(FF) 5 Sunil_B - So that's where the beans were hiding" in Necropolis

I removed the boss rush waves nodes and that fixed it

Seems the fix for passive skill trees' boss rush waves nodes, adds more waves instead of removing? After the pentagram is entirely colored I still fight a couple more waves

Thank you for the mod — super excited for it! As for that error, it's pretty rare, and since I have tons of other mods installed, conflicts are possible. So don't sweat it. Sorry I couldn't give detailed repro steps; the specifics faded from memory when I tried to recall them.

@撒批都来忏悔 EC significantly reduces the gap between good and bad loot RNG in special rooms, making rewards more consistent overall. Without difficulty-increasing mods, this can lower the challenge—especially when exploring multiple special rooms or hitting rare ones. I'm currently reworking loot across many layouts, with changes like nerfing altar payment amounts and adjusting double trouble rewards, so the next update may be related to what you're looking for.

Also, I wasn’t able to replicate the getRoom error related to special shop icons from Golden/Junk shops, but as a workaround, it’s possible to disable those custom icons when that happen.

I feel the modified rooms in this mod offer excessively higher rewards than the base game, especially the sacrifice room. This makes obtaining powerful items too easy, resulting in dramatically reduced difficulty. The rewards from these altered rooms may need to be scaled down.

"MC_POST_NEW_ROOM" from "Enhancement Chamber" failed: ...th/mods/enhancement_chamber_3486533759/scripts/icons.lua:23 : attempt to index a nil value (local 'getRoom')
Stack Traceback:
...th/mods/enhancement_chamber_3486533759/scripts/icons.lua:23 : in function 'roomIconUpdate'
...th/mods/enhancement_chamber_3486533759/scripts/icons.lua:59 : in function at line 56

Thanks a lot

@Alzgamer

Fixed altars spawning in Mastema's sacrifice rooms in the last update.

@NotFirstCultist

The last update added a new tab to toggle red heart mechanic and ambush champions. I forgot to change EID check, so it was trying to find the last config data. It's fixed now.

I mean ConfigSpecial

The mod fails to load:

[INFO] - Running Lua Script: C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth/mods/enhancement_chamber_3486533759/main.lua
[INFO] - ERR: ...h/mods/enhancement_chamber_3486533759/scripts/compat.lua:11: attempt to index a nil value (field 'Config')
[INFO] - There was an error running the lua file: C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth/mods/enhancement_chamber_3486533759/main.lua

I looked at the file and I think you just wrote Config instead of SpecialConfig

Yes, it conflicts with the sacrifice room. The altar was placed on the sacrifice circle from the Mastema mod, which can too change the default sacrifice room

@Alzgamer Is that the Mastema character? I'm not being able to find the conflict.

This mod has a conflict with Mastema's sacrifice room. Can you pls fix it?

thanks drarkyel you are awesome!

Thanks a ton!

@Gokudera ElPsyCongroo @NotFirstCultist

Both issues are gone, including extra fixes related to FF.

@The Deadmonster

I will separate some of the features into a miscellanious tab later on, including nerfs.

If you enter a sacrifice room before discovering the whole floor and use the Red Key or a red key piece to move to a red room, the door to the sacrifice room stays shut and you get softlocked

Seems boss rush rooms are not compatible with some Fiend Folio rooms that add a pit in the middle of the boss rush

Could you add a list of options for the Sacrifice Room rework? To remove certain modifications, like not taking damage from red hearts? Maybe to balance things out for everyone's taste.

@Jetrvoox Okay, I changed how config data is saved. Now it'll probably work.

Still doesnt seem to respect what the settings actually are on. Sorry for all the comments :/

Neither does the Sacrifice room change if I disable it. even after restarting run etc, so Im going to try to fresh reinstall the mod to see if it gets fixed.

Okay, it seems that even if I disable things such as curse room enhancement, it doesnt actually disable.

Ty, you're my goat @Drarkyel

@Jetrvoox I changed to save at the moment there is any change in config instead of waiting until exiting the game. Changes will likely persist upon reset.

@Gokudera ElPsyCongroo Last update makes boss rush wave reduction only trigger upon starting a run. It's probably going to work if the mod uses Repentogon as well.

Are reduced boss rush waves compatible with Passive Skill Tree's skills that reduces boss waves by 1 and 2?

Thank you, also, I seem to always have my settings reset/config of the mod reset after a restart, any idea what the issue could be?

@Jetrvoox Fixed.

""MC_POST_GRID_ENTITY_DOOR_RENDER" from "Enhancement Chamber" failed:
... s/enhancement_chamber_3486533759/scripts/rooms/curse, lua: 21: attempt to
index a nil value (local 'player')
Stack Traceback:
.. s/enhancement_chamber_3486533759/scripts/rooms/curse. lua:21: in
function at line 7"

Was doing the same for me, you need to unsubscribe from the mod, launch the game, start a run and quit the game, then resubscribe and relaunch. For some reason steam had difficulties updating the mod? Now appears for me after doing that

i am unsure if this is an issue with the mod or me having too many mods that have mod config menu settings available, but the mentioned support for it doesn't seem to be actually showing up in the menu

Added support to Mod Config Menu. Now it's possible to disable special room changes.

@NotFirstCultist Fixed.

@Gokudera ElPsyCongroo It's fixed now, but I can't keep the double trouble mechanic and curse of the labyrinth in that challenge. EC reworks how double trouble works in the game, removing the vanilla rooms, which was the reason for the crash. It was changed because there is no support for boss pools yet.

For some reason I can't go to the second chapter of Ultra Hard challenge when this mod is enabled. Log spams "[INFO] - [warn] could not find matching boss room (boss id: -3700) for the current stage
[ASSERT] - failed to generate level too often, giving up"

With this mod turned on, other mods can't recognize when a challenge / ambush room is cleared.

ok thanks issue on my end

@toaster Yes, requires repentogon for Repentance or repentogon+ (nightly build atm) for Repentance+.

hang on- do i need repentogon for this mod?

@toaster What is the issue about these rooms?

the sacrifice rooms and shops arent working as intended

@NotFirstCultist I forgot about removing the damage immunity debug. It's fixed now.

Entering a curse room makes you invincible forever

@Ambien @MikoDaBoy Both issues are now fixed.

@JSG Okay, the description is changed with a better explanation.

Thank you for updating disclaimer about Repentogon

hello these curse rooms kill me when i touch the white fire in downpour, is this intended? i feel like the lost should still be able to visit them.

If you are going to advice people to use RGON nightlies, I'd at least ask you to warn people about the cons of doing so, like not getting autoupdates at all and the releases being indev and potentially unstable...

Bug: Cursed Grail doesn't work with modded sacrifice rooms, making the item unusable

Ambush issue is now fixed, including other ones.

love the mod, really like the double troubles and black markets, my only issue is that boss challenge rooms have like 10 waves instead of 2 which i assume is not intentional