All plugins settings broken after adding Webgl

Hello
Seems i could not find this issue so :

After adding "webgl" support on 2019.2.0b9 i could not anymore click in editors on plugins settings they all crash with same message :

Code (CSharp):

1. JSONTypeException: Tried to read non-dictionary json value as dictionary
2. UnityEditorInternal.JSONValue.AsDict (System.Boolean nothrow) (at C:/buildslave/unity/build/Editor/Mono/AssetStore/Json.cs:130)
3. UnityEditorInternal.JSONValue.AsDict () (at C:/buildslave/unity/build/Editor/Mono/AssetStore/Json.cs:136)
4. UnityEditorInternal.JSONValue.get_Item (System.String index) (at C:/buildslave/unity/build/Editor/Mono/AssetStore/Json.cs:173)
5. UnityEditor.iOS.XcodeFrameworks.LoadFromJson (System.String jsonPath) (at C:/buildslave/unity/build/PlatformDependent/iPhonePlayer/Extensions/Common/FrameworkListProperty.cs:47)
6. UnityEditor.iOS.XcodeFrameworks..ctor (System.String jsonPath) (at C:/buildslave/unity/build/PlatformDependent/iPhonePlayer/Extensions/Common/FrameworkListProperty.cs:58)
7. UnityEditor.iOS.FrameworkListProperty.CreateFromJson (UnityEditor.BuildTarget target, System.String platformName) (at C:/buildslave/unity/build/PlatformDependent/iPhonePlayer/Extensions/Common/FrameworkListProperty.cs:212)
8. UnityEditor.iOS.iOSPluginImporterExtension..cctor () (at C:/buildslave/unity/build/PlatformDependent/iPhonePlayer/Extensions/Managed/iOSPluginImporterExtension.cs:16)
9. Rethrow as TypeInitializationException: The type initializer for 'UnityEditor.iOS.iOSPluginImporterExtension' threw an exception.
10. UnityEditor.iOS.TargetExtension.CreatePluginImporterExtension () (at C:/buildslave/unity/build/PlatformDependent/iPhonePlayer/Extensions/Managed/ExtensionModule.cs:147)
11. UnityEditor.Modules.ModuleManager.GetPluginImporterExtension (System.String target) (at C:/buildslave/unity/build/Editor/Mono/Modules/ModuleManager.cs:569)
12. UnityEditor.Modules.ModuleManager.GetPluginImporterExtension (UnityEditor.BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/Modules/ModuleManager.cs:577)
13. UnityEditor.PluginImporterInspector.ResetValues () (at C:/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/PluginImporterInspector.cs:342)
14. UnityEditor.PluginImporterInspector.Awake () (at C:/buildslave/unity/build/Modules/AssetPipelineEditor/ImportSettings/PluginImporterInspector.cs:431)

from what i understand meta could miss the Web / webgl entry and so not be able to update plugins settings

any fix or workaround ? This occur with all plugins i tried in editor

thanks

 

Have you checked if this error also occurs on the latest 2019.2, non-beta, release?
https://unity3d.com/get-unity/download/archive