If you copy filters from pipe1 to pipe2 - pipe2 not working at all. You can fix that by adding new filter in pipe2 or toggle blacklist/whitelist twice

@Speiger you need to relog after you copy filter

1. Copy filter
2. Paste
3. Relog
4. Check pipes working

@AngryDatchund You mean like this?
If the next comment doesn't provide video proof then I will assume this being a troll report.
Because I now did it the exact way you wanted it.

@AngryDatchund could you specify the tube or fluid pipe you used?

@Speiger default tube. It also works with any pipes

@AngryDatchund yeah please show me a video of which you specifically mean since you said "Default tube"
Which doesn't have any settings.
Here is the proof that i picked a random filter tube and it worked just fine.
https://youtu.be/y0xtQR3-O-I

If you make such a broad case I can only test so many things before i run out of time.

Until specified what exactly you mean it is marked as invalid

Edit: I tested the fluid pipe too and it works just fine too.