It works!
If someone is interested here is how it works for me: (with docker-compose)
Go into your docker directory where ORS is running.
cd ORS (for example)
docker-compose down (stop and delete ors-app)
docker-compose pull (download newest version of ors-app)
Now locate FootFlagEncoder.java file in your docker.
Should be in var/lib/docker/overlay2/
Edit FootFlagEncoder.java about line 325 the function private boolean
hasTooDifficultSacScale(ReaderWay way)
Change: return sacScale != null && !suitableSacScales.contains(sacScale);
to: return false; //sacScale != null && !suitableSacScales.contains(sacScale);
Save the file.
Now delete the graphs folder.
And now rebuild graphs with
docker-compose up -d
In my case ORS is now routing T5+ too!
Thx for supporting me to get there!