Kim Sibbritt's post in Bella Coola Default buildings still showing was marked as the answer
I was just about to post that I had discovered the same problem at Orcas Island.
Following your advice I have finally tracked down the trouble.
I found it in Addon Scenery/Scenery.There were 19 bgls named 'bella' 1-11, & 'orcas' 1-8'.
I have know idea which scenery they came in with,but I removed them & the problem has been solved.
Many thanks for your help steering me in the right direction.