Video texture playback iOS 9.2 fix ("libVuforiaMedia.a" ignored

Hello:

Notice we use Unity and stream video when markers are viewed. 

We noticed a bug that sounds very much like this issue: 

https://developer.vuforia.com/forum/unity-extension-technical-discussion/video-texture-playback-ios-92  ,

in which our video based Vuforia app loses sync between the audio and video (we have yet to separate them), then basically stops playing any video (but doesn't crash to a black screen or anything).

*Interestingly, we tested on two devices (OS 9.2.1) had no problem with iPhone 6s, but this issue is seen consistently on iPhone 6.

We implemented the above recommended fix, adding the few lines of code to VideoPlayHelper.m, compile to xcode, take the "libVuforiaMedia.a" and replace it in the plug ins folder (removing the old one), and renaming the VidePlayerHelper.mm to txt,  etc. (including all of the other steps for the sake of not spelling out the previous thread).  

After compiling to xcode (7.2.1 to be exact) we get this error mesage saying that xCode is ignoring "libVuforiaMedia.a". (see below)

"ld: warning: ignoring file /Users/M...../Desktop/l..../Libraries/libVuforiaMedia.a, file was built for unsupported file format ( 0x62 0x6F 0x6F 0x6B 0x00 0x00 0x00 0x00 0x6D 0x61 0x72 0x6B 0x00 0x00 0x00 0x00 ) which is not the architecture being linked (arm64): /Users/MichaelDykierGrislyManor/Desktop/PF Mic 2.7.16/Libraries/libVuforiaMedia.a"

Any insights on what we might have done wrong; assuming that this fix isn't even applicable to my issues, it shouldn't break my project.

Thanks,

Michael