The LTE tethering Connection is working and the WAN (Router) Connection also.
In some cases also the fallback to tethering is possible when wan is not active (rarely).
I switched Metric in Members to 3 for WAN and Tethering and setted the weight to 3 WAN and 1 Tethering.
I also deaktivated the other Interfaces.
I also changed the lanIp to something other then the LTE Stick.
But there is no load balancing between them when I test for Ip?