Originally Posted by akkiano

I believe the valid from date is the date your i-765 gets approved, so there is definitely a gap if your EAD already expired, and if it hasn't then you have an overlap.

Doesn't make sense for them to set the starting date for a new EAD as the expiration date of the old one for people that have already expired. It's like telling them "oh here, lets give you authorization to work now for the time that already passed". Yeah sure, let me just use my time reversal superpower to go back a month and a half to get some use out of that.