1. Have tabs accessing various databases.

2. Quit dbForge Studio.

3. Launch dbForge Studio.  Tabs are restored.

4. Run query in existing tab.  Get "object not found error".

5. Change database via dropdown and then change again, selecting original database.

6. Query now runs successfully.

dbForge Studio for SQL Server 2026.1.39.  This issue was not present in the last version (or the version before - can't remember what I upgraded from).