I had this issue with 10.3.0.1418 (the non-leak, stock passport OS prior to the update), so this isn't strictly a 10.3.1 issue...
I deleted the app and then did a hard reset... I also had this issue with an app that was way out dated (amazon shopping) if you do a search on here you'll find my thread about that.
Unfortunately it seems to be doing this error on every single app I try. Tried deleting and reinstalling. Restarting my Passport, etc. Nothing will work.
Full back up completed, and going for a hard reset.
Games run ok I got the joinz game from the unofficial amazon appstore on my BlackBerry Z10 running 10.2.1 working fine also after updating all apps from bbw and performing a hard reset the flickering issue has seem to have subsided for now will monitor phone behaviour for the rest of the month
Whenever that happened to me is when I downgraded my OS from a leak. I always had to do the trick Adam described awhile back on here for a bricked phone or a screwed up OS. That was. One helpful post. I think Crackberry should recycle it now and then in the News feed. I'll try to find it a bit later and come back and post the link.... unless somebody beats me to it.....