This can occur if Apache cannot connect to opsview-web correctly. This has been seen with the following message in the apache logs:
[Fri Feb 1910:12:02.7463572016] [proxy:error] [pid 19959] (32)Broken pipe: [client 192.168.12.114:53471] AH01084: pass request body failed to 127.0.0.1:3000 (127.0.0.1), referer: http://192.168.16.201/monitoring/#!/graphs [Fri Feb 1910:12:02.7465692016] [proxy_http:error] [pid 19959] [client 192.168.12.114:53471] AH01097: pass request body failed to 127.0.0.1:3000 (127.0.0.1) from 192.168.12.114 (), referer: http://192.168.16.201/monitoring/#!/graphs
A possible resolution is to add a longer timeout to the proxy configuration. In Apache configuration, set:
ProxyPass / http://127.0.0.1:3000/ retry=60
This will increase the amount of time to connect from Apache to opsview-web.
Contact Opsview Customer Success if this fails to resolve the issue.
In Host and Service Investigate windows, if the host description is more than 1 line, the scroll bars do not appear on the right hand side of the field. You can still select and drag to highlight the full text. Alternatively, you can use a scroll wheel. This affects Firefox (versions up to 44) on all versions of Windows (versions up to 8).
This works correctly in Chrome and IE10 and IE11: