Unable to start/configure proxy service with bridge0

[eloris]

Hi

thanks for the great work.
I just started to play with all the config options today and I like it.
I suppose it was a bit too much of fiddleing.

Error
When I want now to start or configure the Proxy I get:
Unable to save data, an internal error occurred.
Response from server was:
{"status":401,"message":"Authentication Failed"}

So I searched and found a similiar issue here.
https://forum.opnsense.org/index.php?topic=2329.msg7448
But I can not select any interface in that box. Nor does it save any interface that I put in.
I tried: LAN, em0, MyLAN, bridge0..

My System:
OPNsense 16.7.3-amd64
Interfaces: em0 em1 ath0
MyLAN is bridge0 of LAN (em0) and wifihome (ath0)

Can I start over with the proxy config?
What exactly do I have to type in?

Thank you for any hints what I could do.

update:
if I delete my bridge, I can start the proxy service.