812s crossflashed to 832s problem

I have a 812s crossflashed to 832s FW VSOJ, DVDinfopro says DVD+R DL read and write is supported, but when I insert a +R DL I burned on my 1693s it says “no media persent” also will not play it, yet it plays fine on my other players and LVW 5005 recorder, org disk reads and plays fine. Any ideas? :bow: