I think it’s awesome that Simbrief ventures into route finding and I understand that it is a difficult topic.
The problem is however, that the new route finde is causing quite a few issues. I am based in the LOVV FIR so naturally I tried it there and some of the routes are wild! Some interesting one’s:
LOWW LOWI OSPEN DCT NANIT
LOWW EDDF MEDI1E MEDIX PINQI DEXIT PETIX PETI4A
These routes are catatstrophic when flying online. They are 200% IFPS invalid, they are nowhere near the paths aircraft departing/arriving these airports would take and this will cause immense issues when flying online.
Both routes have IFPS valid options available that were ignored, there was no reason to generate a new one. The mandatory routing is OSPEN DCT ABRUK DCT SETAL for instance, for LOWW see https://charts.vacc-austria.org/LOVV/LOVV_Enroute_SECSI%20Departure%20via%20LOWW_23042020.pdf
An issue seems to be mandatory routings set in the the RAD. In this case this affects mostly departure and arrival routes (3A ARR/DEP).
I would greatly appreciate if, given the current state of the route finde, a Eurocontrol validated route were selected preferentially. We spend a lot of time clearing worng routes time and time again, these new routes destroy so much progress.