Um Roll20 just made me lose 2 hours of work

So i spent 2 hours before my session personally customizing my dragons horde as a macro for quick use and i saved it (yes i saved it, multiple times) just for when my players finish a 6 hour session just for the macro to just decide it doesn't exist. How and why did this happen? It's extremely down putting when not you lose 2 hours of work but your players get nothing for a 6 hour session but "I got to redesign this entire horde because roll20 appearntly is to dumb to save something it said is saved"

I never edit anything in Roll20 itself.  I have the Sublime editor open and I copy and paste into Roll20 for testing. I recommend you do something similar. Make sure you use a programmer editor, you don’t want any smart quotes etc., because that will introduce bugs into your macros.