pfSense

DNS Resolver, add a host override
Enter stuff in the normal Host, Domain, IP Address, Description fields.
Click Add Host Name in the "Additional names for this host" section"
The stuff you entered in the top 4 fields is blanked out!!!

You can make an entry by first clicking "Add Host Name" enough times to make the number of rows you need, then enter all the data and Save.

Same problem if you edit an existing entry and try to "Add Host Name".

Same problem in DNS Forwarder.