I have LRT4 and Lightroom CC (LrV6). After indicating the number of keyframes I want..in this case 2 the dialogue then tells me to either drag or select full frames in my LR filter. Since I dont need the sequence added again I select the LRT full sequence and then activate "read meta data" unfortunately after several tries the keyframe diamonds never appear in my files-pics.

Im running MAC 10.9.5

Never mind I found the problem..user error. I was opening a different sequence.