I mean this has always been in the game, I particularily take issue with description, I am somewhat certain it is supposed to say and even used to say at a time that it only applies to empires not at war.

I've checked your save, and all the trade routes seem to be operating just fine, even the ones through the Horatio-controlled Rhea.

impossibru, I must doublecheck. But I did see some red routes.

blockade on trading route lumeris 50 pop.sav 

Let us rivist this with a new save and occurence of the situation.

The last trading company is blocked off, there are 6 blocked routes.

Just checked that save:

The trade routes starting in Cilphi are correctly blockaded, as they are trying to run through a pirate system. However, the Scan View does not reflect this, so there seems to be a display error.

I think the "blockades" part refers to enemy fleets blockading your routes, not enemy systems. I would have to double-check that with the designers, though.

Never understood how unfriendly systems can passively blockade a route.

Sending negative vibes?