After restoring Discourse on a new host, I found some old topic images are not showing
But it appears in two case
- When I click on it to see full size
- When I rebuild HTML of that topic
If I do below command
cd /var/discourse
./launcher enter app
rake posts:rebake
Is it same as rebuilding? 
Yesterday, I tried it was taking so long time, so I stopped it in half-way.
Thanks & Regards,
Gulshan