Turnsignals Fail! Help!

[Doug62]

Really need some help here guy's. I have a couple off cars with the same problem. Green arrows show the turn lights on the ground and back light is working correctly. The issue is the "Wrong" side off the front light is working. Turn the other way and it changes to the other side, again wrong! I have only one mesh representing the two front lights so I've used this config

[CustomEmissive]
Meshes = front_markers_text_gls
@ = CustomEmissive_CoverAll, Channel = 3 , Mirror
@ = TurningLightsFront, Channel = 3
@ = AlphaFromTxDiffuse

I need to know if it's possible to reverse the the channel so it swaps the lighted light from left to right and visa versa. Any other way too fix this would be good. Thanks guy's.

https://github.com/ac-custom-shaders-patch/acc-extension-config/wiki/Cars-–-Multichannel-emissives#mirroring is the guide but I'm not getting it.
I've tried a heap off different things over the past two week, posted on Discord for the shaders patch. Had some advise but nothing that I haven't tried. Also posted here in mod discussion that has at least got the lights working thanks to Stereo.

Surely I'm not the only person that has had this problem?