The following code pattern in any plugin will cause Studio to always freeze immediately upon loading any place.
wait(1) -- or any other yield -- ie. game:GetService("MarketplaceService"):GetProductInfo(555555)
Two independent Post Approval requests came in about mysteriously being unable to load places, starting at least 8 hours ago. One of these users managed to find the plugin crashing them, and I isolated the problem by stripping the plugin code down.
Though PluginManager() is deprecated, the root cause of this issue is not visible to developers because third party plugin code is causing Studio to freeze.
No crash dumps are generated because Windows kills Studio.