To reproduce:
Welcome grid, sample file.
Create new TLI
create 3 children
Tick the source field (InfoQube) for the three children (didnt test to see if this relelevant)
Delete the parent -- dont delete the sub-items
The items all disappear, but reappear after a refresh
If context parents are not turned on, turn on -- the deleted item shows when context parents are on.
Clicking on the 'deleted' item, shows info in the PP from previously selected item greyed out.
There is also a Database error warning (I see Repair is not currently an option).
This happened in my own file -- item was still there after IQ restart.