Assisance with my first ever NAM Highway

[Missecho 99]

Hi guys,

I finally bit the bullet and decided to try a proper NAM hwy instead of using the maxis ones which to date is all I have used.  So after about 8 hours of hair ripping and swearing I finally finished it.  As far as I can see it is all built correctly, I have no sims in this town yet or traffic so can't test if it all works so I put 'draw paths' on to help make sure all was going in the correct directions etc.  It all looks fine and the green arrows are all looking correct however I get two little red flashing thingos on the two ramps as shown in the pictures and have no idea why they are there.  I am assuming an error but for the life of me cannot figure out what.  

I am building that hwy shown on the left on the first picture and as far as I can see all the yellow lines are correct for the flow of traffic.     The intersections are all mirror image so not sure why 2/4 are showing these flashing things.   I have tried deleting the ramps and putting in other ones, the ramps here are Flexramp B1 and the hwy's are RHW-8S which this ramp supports.   The N/S hwy is 8 lane elevated, the E/W is 8 lane ground.  I am using NAM 39.  

 

[Ganaram Inukshuk 906]

You managed to find one of the many easter eggs i left behind, actually. (That's the symbol of one of the former NAMdevs.)

The entire interchange will work just fine, even like that.

[Missecho 99]

@Ganaram Inukshuk  Well thanks for that lol.   I was worried I was gonna have to rip it apart to make it work. This NAM stuff sure is overwhelming for beginners.  Now I need to figure out how to get all the city roads joined to the highway in some logical fashion.  That thing only deals with the stuff already on the highway.