Im using Enigmatica6-0.4.14.zip

When i start up the modpack everything seems to load fine until it gets to Atlas Stitching : Minecraft:textures/Atlas/Beds.png.
ive tried to leave it for 2 hours, increasing and decreasing the ram, undowloaded the modpack and forge. nothing seems to work.

Thanks for the report. Could you please provide your latest log?
I think you should remove ConnectedTexturesMod and see if that resolves the issue :)

Now that im back from work, it seems to launch fine.
didnt do anything to any files between then and now
a bit of a shame since now its gonna be hard to reproduce and log it

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Awesome :P glad it's working.

a bit of a shame since now its gonna be hard to reproduce and log it

I'm fairly certain I know the cause, and it has been reported to the appropriate developers :)