Unable to Open Previous Game Versions After Switching to New Group Roles

[Bluegamerdog (Blue)]

Ever since our group switched to the new group roles provided by Roblox, we’ve been unable to open previous versions of our game in Roblox Studio. The issue occurs consistently for all developers in the group.

Steps to Reproduce:

1. Open Roblox Studio.
2. Navigate to the “Version History” of a game owned by a group that has been switched to the new group roles.
3. Select an older version and click “Open.”
4. Observe the error message:

We could not open the place [0]. HTTP 409 (Conflict)
If you continue to encounter this error, please report it on the Developer Forum.
Incident ID: 5888625479973464651

System Information:

• OS: Windows 11 64-bit
• CPU: AMD Ryzen 7 7700X 8-Core Processor @ 4.50 Ghz
• GPU: NVIDIA GeForce RTX 4060 Ti
• RAM: 64 GB
• Roblox Studio Version: 0.657.0.6570603 (64bit) | Latest Version Available: 0.657.0.6570603

Beta Features Enabled:

• Dragger QoL Improvements
• Occlusion Culling

Visual Aids:

Expected behavior

Older versions of the game should open successfully in Roblox Studio, allowing developers to view or restore previous builds without encountering any errors.

[Howimetted]

Thanks for the report! We’ll follow up when we have an update for you!

[sealloomsupplies]

Hi @Bluegamerdog,

Thank you for the report! Apologies for the bug, we are working on updating this flow now.

For now, if your team requires editors to open older versions of the game, please continue to use the older group permission for edit, ‘Create and edit community experiences’.

Separately, if your team is alright with reverting version history for the experience, the developers in your group who have the new edit (‘Edit all group experiences’) or publish (‘Edit & publish all group experiences’) can revert the experience to a previous version and open in studio via CreatorHub (url like so: https://create.roblox.com/dashboard/creations/experiences/{experience-id}/places/{place-id}/version-history).

Thanks again for the report! We will be in touch after the bug is fixed.

[testing34545 (Simon_34545)]

@Bluegamerdog @sealloomsupplies I also experience this issue for games that aren’t under groups, but have Team Create enabled. When I attempt to open old versions from inside of studio, it just crashes upon trying to load the place. If I attempt to download old places through the Creator Dashboard, it just downloads a 4 byte rbxl that contains the string null

new-forest-update-THE-WAR-195.rbxl (4 Bytes)

[lrogerorrit]

Any updates on this?
Im experiencing this same issue. We’re using the new group perms and we’re having the same issues. Both the 409 error and the 4 bytes when trying to download it from the create page.

[Bluegamerdog (Blue)]

Hi there @testing34545 and @Howimetted ! Just wanted to follow up on this — totally understand these things can take time (I’m a developer too, so I get it), and I really appreciate the work you’re doing. That said, it’s been a few months since the last update, and I was wondering if there’s been any progress on the fix for this issue?

Still running into the same HTTP 409 error when trying to open older versions from version history using the new group roles, so just checking in to see if there’s anything new we should know.

Thanks again in advance!

[ElusiveWind]

Hey, this should be fixed now - sorry for the delays. There were other issues preventing us from being able to release this. Once this is confirmed I’ll close out the thread.