ok I was busy with checking the source code, when I noticed that one gateway disappeared from the summery.
When I tried to re-add it, it says : You can not use a IPv4 Gateway Address on a IPv6 only interface.
_So I went to the Gateway (which was disabled, but that is fine!) and enabled it to check the settings. It says: ipv6: none!

Weird._ –> The Error came because it is an PPPoE device. But the message makes no sense ;) But it is fine now.

Ok, it's working now, when the device/gateway is set to "enable".

The Thing was disabled because it is not connected,yet. This was fine in pfsense 2.04.

Anyway… I now know how to get the thing to work!

THANK YOU VERY MUCH!

But thank you very much for your help!!!

Maybe the wrong tab was active.
Sorry for that. It is fine in my file.

I corrected the code above

Maybe the ( ) are making problems in one of the descriptions :/

Here is my config:

	 <gateways><gateway_item><interface>wan</interface>
			<gateway>194.33.xxx.xxx</gateway>
			<name>gwTel</name>
			<weight>1</weight>
			 <interval><ipprotocol>inet</ipprotocol></interval></gateway_item> 
		 <gateway_item><interface>opt4</interface>
			<gateway>dynamic</gateway>
			<name>gwCON</name>
			<weight>1</weight>
			 <interval><ipprotocol>inet</ipprotocol></interval></gateway_item> 
		 <gateway_item><interface>lan</interface>
			<gateway>192.168.250.1</gateway>
			<name>gwDMZ</name>
			<weight>1</weight>
			 <interval><ipprotocol>inet</ipprotocol></interval></gateway_item> 
		 <gateway_item><interface>opt3</interface>
			<gateway>10.10.10.1</gateway>
			<name>gw4G</name>
			<weight>1</weight>
			 <interval><ipprotocol>inet</ipprotocol></interval></gateway_item> 
		 <gateway_group><name>gMail</name>
			gwTel|1
			gwCON|2
			<trigger>down</trigger></gateway_group> 
		 <gateway_group><name>gVPN</name>
			gwCON|1
			gw4G|2
			<trigger>down</trigger></gateway_group> 
		 <gateway_group><name>gBrowsing</name>
			gwCON|2
			gw4G|1
			<trigger>down</trigger></gateway_group> 
		 <gateway_group><name>gAllOutgoingWs</name>
			gwTel|3
			gwCON|2
			gwDMZ|1
			<trigger>down</trigger></gateway_group></gateways> 

	 <gateways><gateway_item><interface>wan</interface>
			<gateway>10.49.94.250</gateway>
			<name>WANGW</name>
			<weight>1</weight>
			<ipprotocol>inet</ipprotocol>
			<interval>2</interval>

			<monitor>216.146.35.35</monitor>
			 <defaultgw><latencylow>4000</latencylow>
			<latencyhigh>5000</latencyhigh>
			<losslow>40</losslow>
			<losshigh>50</losshigh>
			<down>30</down></defaultgw></gateway_item> 
		 <gateway_item><interface>opt1</interface>
			<gateway>10.49.95.250</gateway>
			<name>OPT1GW</name>
			<weight>1</weight>
			<ipprotocol>inet</ipprotocol>
			<interval>2</interval>

			<monitor>216.146.36.36</monitor>
			<latencylow>4000</latencylow>
			<latencyhigh>5000</latencyhigh>
			<losslow>40</losslow>
			<losshigh>50</losshigh>
			<down>30</down></gateway_item> 
		 <gateway_group><name>WiMax_Priority</name>
			WANGW|1|address
			OPT1GW|2|address
			<trigger>downloss</trigger></gateway_group> 
		 <gateway_group><name>Balanced_Traffic</name>
			WANGW|1|address
			OPT1GW|1|address
			<trigger>downloss</trigger></gateway_group> 
		 <gateway_group><name>OpenVPNlisten</name>
			OPT1GW|1|address
			<trigger>down</trigger></gateway_group> 
		 <gateway_group><name>OPT1_Priority</name>
			WANGW|2|address
			OPT1GW|1|address
			<trigger>down</trigger></gateway_group></gateways>