4K Video support in MP4

[skpManiac]

Nearly all my devices now shoot in 4K so its very important that my software supports this.
I have had to buy other software because Muvee Revael crashes when I try to mux any 4K video - I have submitted several reports and crash logs but not had any response.

MR really needs to move forward and fix this issue so we can use the potential of our devices - I have been a long time customer and with v12 I bought the entire pack but cannot use it :/

Please fix this and update it ASAP