ENDIAN Firewall - IPsec VPN no longer works with 2.5

I installed the new efw 2.5 on an identical machine, and then restored a backup from 2.4.1. Everything works perfectly as far as I can tell, except one thing - an IPsec connection to a remote 2.4.1 server no longer works. It uses a shared key and the key was restored along with the other settings, but it just will not connect.

I deleted the IPsec connection on the 2.5 server and recreated it, but it still will not come up. I also enabled the debug options for the connection, but I cannot see the logs for IPsec on the log page and I don't know where to look to see what the issue might be.

Also, there are three options that are missing for the VPN that I think is a bug. There should be two checkboxes and a data entry box on the IPsec page:

VPN on ORANGE:
VPN on BLUE:
Override default MTU:

I have an Orange interface, but I do not check this box. I also do not override the default MTU. However, I think these options should still be there...