The Technic launcher is working perfectly fine, just when I click play it will show the Mojang screen for a few minutes then it will exit out and go back to the launcher screen. I am running it on a Windows 10 computer. I also have 2 Sphax Pure Bdcraft textures being used on tekkit legends, I am not sure if that is affecting it, but just wanted to be safe.
Thank you for ur time.
-JTJimmy24