frankly I can't believe what I just read in your reply and frankly I can't accept that either because (don't ask me how it was done) JUDE were able to get both multi-db PLUS revolution slider PLUS many more very smoothly working.
Exactly last Sunday we installed m2 PRO and had to cope the week with all that trouble this change caused.
Also, Michael were able to fix twice Revolution Slider... please follow those conversation too.
That it went from smoothly to worse and worst... SORRY this not our responsibility at all and we would not demand an immediate solution today if we would not know for 100% that you expert can fix it.
Therefore PLEASE, PLEASE take utmost care and fix the problem to that person who is able to do it NOW.