Hi JordanSparkles,
I believe a number of earlier issues with character collision while character is not moving have been resolved in newer versions of engine. Which version are you testing this in? I recreated moving platform from tutorial you mentioned ( https://www…com/watch?v=vwZVlgcMGI4&index=9&list=PLZlv_N0_O1gauJh60307mE_67jqK42twB ) in 4.7.6 but I don’t have any collision issues when character is on top of platform and not moving; character moves along with platform, regardless of direction of movement.
Can you and attach project you tested this with? If it’s too large to attach, you can upload it somewhere like Dropbox or Google Drive and give us a link.