2 hosts (so far) will not display in GUI. Web page just hangs

Hi,

We have issue with 2 devices so far out of over 400 devices. These devices are being polled succesfully. If we use search or browse through devices and select the devices web page just sits trying to update but doing nothing. It never times out or produces any error.   We have one fortigate firewall and one Ribbon SBC experiencing the issue but other devices of same all kind working fine.

Have rebooted server, upgraded observium to latest release 24.1.13242 (stable) but still seeing the issue.

Any ideas?  Dont really want to delete and re-add but this was our next thing to try as last resort.