Any news/progress/report or other users having this issue ?.....

Sean, Oscar, do you also have this problem here or this one ???

DV FX

Guys, I've been trying to reproduce the error but I cannot?  I have tried to reproduce the environment, DNN 6.1.0, Repository 3.5.6, but everything works properly, no errors. I followed the steps you've indicated and it works perfectly. Adding the &Page=0 to the URL was done so that after editing the user would be back to the page the item was on, rather than always going back to the first page.  All the code does is look for that value on the querystring and go to that page if it finds it.  It should always find Page 0 because that's the first page.

Can you post the FULL Url when you get that error? not just the &Page=0 part, but the full url http:// ..... 

Maybe that might help me, otherwise maybe we can setup a Live meeting or something where I can see your machine and try to determine what's going on.  The code change for Page retention was pretty straight-forward and I *thought* low-risk, I'm not seeing how it would be causing the problems you are having