# Unable to publish after renaming ambiguous material parameter - verse color error.

**URL:** <https://forums.unrealengine.com/t/unable-to-publish-after-renaming-ambiguous-material-parameter-verse-color-error/1985381>\
**Category:** Issues and Bug Reporting\
**Tags:** fortnite-creative, unreal-editor-for-fortnite, fortnite\
**Created:** [August 21, 2024, 1:33am UTC](https://forums.unrealengine.com/t/unable-to-publish-after-renaming-ambiguous-material-parameter-verse-color-error/1985381 "2024-08-21T01:33:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![chefenmaps](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@chefenmaps](https://forums.unrealengine.com/u/chefenmaps)\
**Post date:** [August 21, 2024, 1:33am UTC](https://forums.unrealengine.com/t/unable-to-publish-after-renaming-ambiguous-material-parameter-verse-color-error/1985381/1 "2024-08-21T01:33:38Z")

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### Please select what you are reporting on:

Verse

### What Type of Bug are you experiencing?

Assets

### Summary

So there was an error with verse where if you had a material parameter called “color” you would get a verse error that wouldn’t wanna go away even though you renamed it. This has been fixed, however the problem is now moved to when you’re actually trying to publish your map. Then the same error shows there under Verse Persistence, and you are unable to publish the map. Very critical problem as it basically locks the project and you are unable to update/publish the map.

### Steps to Reproduce

.

### Expected Result

.

### Observed Result

.

### Platform(s)

Windows

### Island Code

0645-2259-3605

### Additional Notes

Critical problem.

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<div class="post-metadata">

**Author:** ![Jimbohalo10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jimbohalo10/32/961440_2.png) [@Jimbohalo10](https://forums.unrealengine.com/u/Jimbohalo10)\
**Post date:** [August 21, 2024, 6:53am UTC](https://forums.unrealengine.com/t/unable-to-publish-after-renaming-ambiguous-material-parameter-verse-color-error/1985381/2 "2024-08-21T06:53:42Z")

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hi @chefenmaps ,  
Possibly the answer to Verse Persistence problems were cleared in this post  
[Verse Persistence incompatible without editing the verse file that contains it](https://forums.unrealengine.com/t/verse-persistence-incompatible-without-editing-the-verse-file-that-contains-it/1956674/2)

and documentation  
[Using Persistable Data in Verse | Unreal Editor for Fortnite Documentation](https://dev.epicgames.com/documentation/en-us/uefn/using-persistable-data-in-verse)