Epson's warranty is one of the best but unfortunately their quality control sucks in their refurbished projectors. Sounds like something is wrong with the projector. Contact Epson and see if they can help. One suggestion is do a factory reset and make sure 3D is set to auto and play a 3D BR disc if you so no 3D double image without the glasses or if wearing the glasses makes no difference something is amiss.
"Smart enough to know better, to old to care" ------ Dedicated Bat Cave Home Theater, JVC RS49U/Mitsubishi HC7900DW Projector, 110" 16:9 Jamestown screen with variable power masking for CIW 2.50:1 to 16:9, Marantz 7009 with 7.1.4 Atmos with Ohm mains,3 DIY Subs (2 15" (1 ported, 1 sealed and a 12" 4th order bandpass), 1 DIY butt kicker, Custom Built HTPC, 18TB DroboFS NAS