I think this has already happened on previous builds but it seems to create an error after launching the mod with the bundle.

The debug tab says the bundle has loaded correctly? And that I have the right version.

NullReferenceException: Object reference not set to an instance of an object

Amplitude.Framework.Asset.AssetDatabase.EnsureAssetBundlesAreCorrectlyMounted () (at <a415c781021a4c35b4567d7eb1d7162e>:0)

Amplitude.Framework.Asset.AssetDatabase.OnAssetBundleManifestChanged (System.String assetPath, System.Type assetType, Amplitude.Framework.Utility.AssetChangeType assetChangeType) (at <a415c781021a4c35b4567d7eb1d7162e>:0)

Amplitude.Framework.Utility.AssetDatabaseUtility.OnAssetChanged (System.String assetPath, System.Type assetType, Amplitude.Framework.Utility.AssetChangeType assetChangeType) (at <a415c781021a4c35b4567d7eb1d7162e>:0)

Amplitude.Framework.Utility.AssetDatabaseUtility.OnPostprocessAllAssets (System.String[] importedAssets, System.String[] deletedAssets, System.String[] movedAssets, System.String[] movedFromAssetPaths) (at <a415c781021a4c35b4567d7eb1d7162e>:0)

System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <695d1cc93cca45069c528c15c9fdd749>:0)

Rethrow as TargetInvocationException: Exception has been thrown by the target of an invocation.

System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) (at <695d1cc93cca45069c528c15c9fdd749>:0)

System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) (at <695d1cc93cca45069c528c15c9fdd749>:0)

UnityEditor.AssetPostprocessingInternal.InvokeMethod (System.Reflection.MethodInfo method, System.Object[] args) (at <3081d2bcbc4348779c37880b87cdb6a1>:0)

UnityEditor.AssetPostprocessingInternal.PostprocessAllAssets (System.String[] importedAssets, System.String[] addedAssets, System.String[] deletedAssets, System.String[] movedAssets, System.String[] movedFromPathAssets) (at <3081d2bcbc4348779c37880b87cdb6a1>:0)

UnityEditor.AssetDatabase:SaveAssets()

Amplitude.Framework.Editor.Builds.AssetBundleBuildSettings:Build(BuildTarget, Boolean, Boolean, List`1&)

Amplitude.Framework.Editor.Builds.AssetBundleBuildSettings:BuildFull(BuildTarget)

Amplitude.Mercury.Prod