Ios App when uploading files (.mov) larger than 100mb doesn’t work

I started automatic upload for all the files. Pictures uploaded with no problems as well as smaller videos ( up to ~90mb). For everything larger, upload bar goes to the end and then starts from the beginning. However some files I find uploaded to the server successfully. But they won’t show up in the photo folder in iphone app and the uploads go in loops. Tried most, if not all, advices to raise upload limits, file size limits, etc. The issue is still there. Hope this makes sense. Any help would be greatly appreciated.