The Database Hub component is not fetching or displaying available databases after connecting and syncing through the MAIN VERCEL remote bridge connector.
The connector appears online and connected successfully (green status indicator visible), but the database dropdown remains empty and shows:
“No databases found. Check connector.”
Current Flow
Add Connector component (MAIN VERCEL)
Select active remote bridge connection
Click Sync Schema from DB
Connect output relation to Database Hub
Open Select Active Database
Expected Behavior
After schema sync:
Database Hub should fetch available databases automatically
Databases should populate inside the dropdown
Attached collections should appear after database selection
Actual Behavior
Sync action completes with no visible error
Database dropdown remains empty
Collections section shows:
“No databases found. Check connector.”
Relation connection visually exists, but data is not propagating
Possible Root Causes
Connector sync response not updating shared graph state
Database Hub not subscribing to connector schema updates
Relation pipeline not triggering re-fetch after sync
Async race condition between sync completion and database fetch
Connector response format mismatch (databases[] undefined/null)
Cached stale connector state
Missing event emission after successful schema sync
Debug Points
Check:
Connector sync API response payload
Relation state propagation
Database Hub useEffect dependency triggers
Whether database fetch runs after sync completion
Console/network errors during sync
Zustand/store/node graph update events
Null-safe parsing of connector response
Suggested Fix
After successful Sync Schema from DB:
Emit schema update event
Refresh connected nodes
Trigger database fetch in Database Hub
Rehydrate dropdown state from connector response
Add loading + error state handling
Reproduction Rate
100% reproducible
The Database Hub component is not fetching or displaying available databases after connecting and syncing through the MAIN VERCEL remote bridge connector.
The connector appears online and connected successfully (green status indicator visible), but the database dropdown remains empty and shows:
“No databases found. Check connector.”
Current Flow
Add Connector component (MAIN VERCEL)
Select active remote bridge connection
Click Sync Schema from DB
Connect output relation to Database Hub
Open Select Active Database
Expected Behavior
After schema sync:
Database Hub should fetch available databases automatically
Databases should populate inside the dropdown
Attached collections should appear after database selection
Actual Behavior
Sync action completes with no visible error
Database dropdown remains empty
Collections section shows:
“No databases found. Check connector.”
Relation connection visually exists, but data is not propagating
Possible Root Causes
Connector sync response not updating shared graph state
Database Hub not subscribing to connector schema updates
Relation pipeline not triggering re-fetch after sync
Async race condition between sync completion and database fetch
Connector response format mismatch (databases[] undefined/null)
Cached stale connector state
Missing event emission after successful schema sync
Debug Points
Check:
Connector sync API response payload
Relation state propagation
Database Hub useEffect dependency triggers
Whether database fetch runs after sync completion
Console/network errors during sync
Zustand/store/node graph update events
Null-safe parsing of connector response
Suggested Fix
After successful Sync Schema from DB:
Emit schema update event
Refresh connected nodes
Trigger database fetch in Database Hub
Rehydrate dropdown state from connector response
Add loading + error state handling
Reproduction Rate
100% reproducible