Opening or refreshing 'hosts.cgi' deletes first line

Hi,

I got a rather long list in '/var/ipfire/main/hosts'. The current list contains 41 hosts. Some activated, some not.

Say, it *should* contain.

But today the page looked somehow shorter than expected...

I found that every time I *open*, *refresh* or *sort* (e.g.) this list through 'host.cgi' the first line is deleted.

At the moment, adding new entries is ok, but when I reopen or reload the page the first line is gone. Every time, counting down...

Just as I write: reloading just *doubled* the first line...

Running Core 142/32bit.

Can anyone confirm or tell me what is happening here?

Best, Matthias