# Mutation Changes mod

**URL:** <https://discourse.cataclysmdda.org/t/mutation-changes-mod/12362>\
**Category:** The Lab\
**Tags:** mod\
**Created:** [August 18, 2016, 1:53am UTC](https://discourse.cataclysmdda.org/t/mutation-changes-mod/12362 "2016-08-18T01:53:24Z")\
**Posts on this page:** 1\
**Showing post:** 61

<div class="post-metadata">

**Author:** ![TheMightyHercules](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/themightyhercules/32/340_2.png) [@TheMightyHercules](https://discourse.cataclysmdda.org/u/TheMightyHercules)\
**Post date:** [November 28, 2018, 12:07pm UTC](https://discourse.cataclysmdda.org/t/mutation-changes-mod/12362/61 "2018-11-28T12:07:42Z")

</div>

Awhile ago there was an update that changed how mutations were categorized. For example, let’s look at the mutation “Good Hearing”

```
             Before

        "type" : "mutation",
    "id" : "GOODHEARING",
    "name" : "Good Hearing",
    "points" : 1,
    "description" : "Your hearing is better than average, and you can hear distant sounds more easily.",
    "starting_trait" : true,
    "category" : ["MUTCAT_ALPHA"],
    "cancels" : ["BADHEARING"]

              After

    "type" : "mutation",
    "id" : "GOODHEARING",
    "name" : "Good Hearing",
    "points" : 1,
    "description" : "Your hearing is better than average, and you can hear distant sounds more easily.",
    "starting_trait" : true,
    "category" : ["ALPHA", "MOUSE"],
    "cancels" : ["BADHEARING"]

```

Looking at the category, you can see that they removed the “MUTCAT” prefix before which Mutation-category it is. When this update first came out, I tried the mod with it and it gave a bunch of errors about the mutation category. So with some free time on my hands, I fixed up the mod to work with the (at the time) most recent update.  
About that Nalkor said. I didn’t notice he was talking about a spawning bug/issue with the mod so I didn’t really fix it, as I didn’t know it was there & my main priority was fixing the mutation category of the mod to play nice with the game. I currently don’t have the time right now to fix it, but Malkeus made the fix over at [“A wandering updater appears!”](https://discourse.cataclysmdda.org/t/a-wandering-updater-appears-works-with-b8166-lazy-b8212-update-in-comments/17267). Which, doing a quick test, worked fine.

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