Ethernet issue

[FranzR]

Hi, Yesterday I update my Pi from FPP v5 to the latest release v6 directly with the new software image. 
The backup from version 5 went good and I have all the setting from the previous year. 

I have a Raspberry Pi 3 b+ and when I have updated I run into this Ethernet issue. The pi sends e1. 31 data with Ethernet (eth0) and sends also data to colorlight card with an Ethernet USB adapter (eth1)  I don't use WiFi, and have the Pi in static mode (192.168.1.5), not DHCP.
Now when I disconnect the Ethernet adapter for the colorlight (eth1) FPP start without problem with static IP of 192.168.1.5
but when I turn off and restart with the Ethernet adapter connected the Pi eth0 change in DHCP mode. 
Several time I swapped the micro sd card to test v5 fpp and the new one fpp with v6 and with v5 I don't have this problem. 
How can I solve this?