Strelock Pro issue

I've been using Strelok Pro for awhile and it was always very accurate. I use to compare it with Chairgun frequently and the results were always almost identical. 

Recently I updated Strelok Pro and now it is way off in it's calculations. It is giving me way less windage and holdover than is actually required for the given data. The same data in Chairgun gives me accurate information. 

as far as I can tell I am still inputing everything correctly. Settings all seem correct I've been using the program for a long time with great results so I think I know what I'm doing. 

So far as I can tell the only thing that has changed is I updated the app. 

Has as anyone else had an issue or might know what is going on here?

i realize it is almost impossible to trouble shoot this on the internet but I am just wondering if Anyone else has had an issue

thanks