V14 and V15 Incompatibility Issues Light Sync #99097

https://thebrain.zendesk.com/agent/tickets/99097

Hello Ian,

Thank you for the details, that helps clarify what’s happening.

Since the Brain was opened and synced in version 15, and the other person is using version 14, this can happen when Light Sync attachments is enabled for that Brain.

To fix this, please do the following in TheBrain 15:

1. Open the affected Brain
2. In the top-right corner, click the sync icon (the two circular arrows)
3. Click the dropdown arrow next to it
4. Uncheck Light Sync attachments
5. Allow the Brain to finish syncing

Once that completes, have the other person reopen the shared Brain in TheBrain 14.

This should restore their access. If it doesn’t, let me know and we’ll take the next step.

Best regards,

John