IPSEC change remote gateway

[s.simma]

Hallo,

I had a running IPSEC connection.
After moving one location to an other place i changed the "Remote gateway (green arrow)" in the "tunnel settings" to the new external IP.

What happens:
No IPSEC connection. The Entry form, where i entered the "Remote geteway" has suddenly new fields (marked with red arrow)
(see attachment)

Reboot, Load backup, Delete/Reenter IPSEC connection -> fields still there (NO ipsec connection)

Has anybody an idea, how to get rid of these fields ?