I have done it, but the resourcepack on the not main server is broken…
This image is from the main:

And this is from my second server:

You can see, that is switches the pictures.. I am selfhosting the resourcepack, and on the second server I used /iainfo and copy the url and delete the #part…
When I join the second server, it Again reloads the resourcepack… but they are the same. So what am I doing wrong.
Config on Main server:

Config on second server:

I hope, you can help me. Thanks