Runway extended no taxiway node

Hello, not sure if this is a bug or how the game is intended.

I built a North/South runway and extended it twice to the North. The taxiway nodes now do not connect to the end of the new extended runway but instead will only connect where the runway originally ended. The green taxiway node lights do appear on the runway but as soon as I attempt to build them the cursor over the runway is red.

Thanks,

This is a known bug so just wait for a fix.