mine always post sideways whenever i use pics.wkc.
i alerted the developer, he told me its my phone.
I explained that all android users have this issue, he said they all must have problems with their phone.
This is what happens when you combine an apple fanboi with an arrogant developer.
As for the mobile app, I haven't had that issue - at least not yet.
By the way, tapatalk and the WKC mobile app are the same app - just skinned slightly different.