BuiltInPlugins (Terrain Editor, Toolbox, etc.) don’t load due to verification failure

[Tenadus]

When I open Roblox Studio, the output is filled with errors and built in plugins don’t load.

Error: Plugin at C:/Users/André/AppData/Local/Roblox/Versions/version-6645bece871b4f98/BuiltInPlugins/ViewSelector.rbxm could not be verified and security settings prevent it from loading.

These errors are not just linked to the ViewSelector, but also the Toolbox, Terrain Editor, and all other built in plugins. They don’t work when I activate them in Studio. For instance, the Toolbox window doesn’t open when I click on the Toolbox button.

The bug started tonight when I opened ROBLOX Studio to continue working on my game. I found this a bit odd since I have never had the same issue before. Presumably a Studio update triggered this problem.

Reinstalling by removing the relevant version folder did not help.

The bug happens on my PC, which is using Windows 10 Home.

[EchoReaper]

Have you modified these plugins or use anything that might (like clonetrooper’s custom studio launcher)?

[PeZsmistic]

Forgot to mention the two other PA requests about this issue, sorry.
Reports started happening about 2 days ago.
https://devforum.roblox.com/t/toolbox-glitch-not-appearing/383175
https://devforum.roblox.com/t/toolbox-and-save-as-roblox-doesnt-working-no-effects-upon-clicking/382134

[Mr_Purrsalot]

Sorry about that. I’ve just reverted the flag due to the issue. Restart Studio and these errors will be warnings until my fix for unicode paths is applied to the next version of Studio.