Editing a 3 camera half hour show using multi camera tool. Completed rough cut chose all angels for full edit. Re-openned project a day played sequence and only camera 1 edits show. When it cuts to cam 2 or 3 just black. All videos are still in untested sequence. 2019 update has been a nightmare with Mac Mojave os.I have 7 other half hour episodes to do and can't keep losing days of editing thoughts?