Topbar ribbon errors on slightly modified "Model" tab, becomes unusable after

[Chark_Proto (Chark)]

Visual Aids:

System Info:
Ryzen 5 5500 @ 4GHz
Geforce RTX 4060 Ti
32GB Ram

Beta Features:

• Acoustic Simulation
• Dragger QoL Improvements
• Incremental typechecking and autocompletion in studio
• New Studio Camera Controls
• Next Gen Explorer
• Next Gen Studio Preview
• Unified Lighting

Reproduction Steps:
Unsure, here’s what I did:

1. Clone “Model” tab
2. Hide original “Model” tab
3. Add “Asset Manager” and “Import 3D” to Clone
4. Broke about a week after.

Were files modified? No. Everything I did was purely in studio, no Bootstrappers, no changing studio files, etc.

Output Error:

  14:40:57.557  Error: Flag RibbonControlsRefactor referenced from Lua isn't defined in C++ code  -  Standalone
  14:40:57.558  Ribbon.Ribbon.Packages._Index.Scheduler.Scheduler.forks.SchedulerHostConfig.default:235: 
------ Error caught by React ------
Flag RibbonControlsRefactor referenced from Lua isn't defined in C++ code
------ Error caught by React ------
Ribbon.Ribbon.Src.Util.isControlEnabledFromFlags:13 function getFlagValue
Ribbon.Ribbon.Src.Util.isControlEnabledFromFlags:30 function isControlEnabledFromFlags
Ribbon.Ribbon.Src.Hooks.useControls:51 function walkControls
Ribbon.Ribbon.Src.Hooks.useControls:89
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberCommitWork.new:460 function commitHookEffectListMount
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberCommitWork.new:2200 function commitPassiveMount
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2836
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2817
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2977
Ribbon.Ribbon.Packages._Index.Scheduler.Scheduler.Scheduler:360 function unstable_runWithPriority
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.SchedulerWithReactIntegration.new:164 function runWithPriority
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:2771
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:878
Ribbon.Ribbon.Packages._Index.ReactReconciler.ReactReconciler.ReactFiberWorkLoop.new:850
Ribbon.Ribbon.Packages._Index.Scheduler.Scheduler.Scheduler:305
Ribbon.Ribbon.Packages._Index.Scheduler.Scheduler.Scheduler:261
Ribbon.Ribbon.Packages._Index.Scheduler.Scheduler.forks.SchedulerHostConfig.default:183 function doWork
Ribbon.Ribbon.Packages._Index.Scheduler.Scheduler.forks.SchedulerHostConfig.default:219 function performWorkUntilDeadline
  -  Standalone
  14:40:57.558  Stack Begin  -  Studio
  14:40:57.558  Script 'Ribbon.Ribbon.Packages._Index.Scheduler.Scheduler.forks.SchedulerHostConfig.default', Line 235 - function performWorkUntilDeadline  -  Studio
  14:40:57.558  Stack End  -  Studio

In-case it’s asked, no reinstalling does not fix the issue.

[imed2004 (Imed)]

I am having the exact same problem since yesterday, on my modified Model tab as well

It’s also happening to other people in communities I’m part of, here’s a video of it happening to someone else (not specifically a modified Model tab but same issue):

The one thing everyone had in common was this tool in the bugged tab :

[butterthebig]

I believe this is the same problem mentioned here:

Next Gen Studio - Preparing for Takeoff! [Beta]

Encountered an error that broke the ribbon bar. For context, I clicked my custom Model tab button, and the error spat out. Restarting Studio does not fix the issue as it seems my Model tab is permanently corrupted. [image]

and there’s a workaround as detailed here:

Next Gen Studio - Preparing for Takeoff! [Beta]

This is a known issue on our end and we’re working on a fix. For the time being, you can delete the corrupted tab by right clicking on the tab (without opening it) and selecting “Delete”. If that doesn’t work, try going to %LOCALAPPDATA%\Roblox\<user_id>\CustomRibbonTabs and deleting the JSON file that is prefixed with Model_.

We are in progress on a permanent fix.