I love Hitfilm software, but the audio effects such as cathedral, the different room sizes, and some features of the echo are broken. They make the video choppy and don't sound particularly correct. I run RAM previews and they still cause the choppy video. When I export, the video has no audio. This issue has baffled me, as just last month, the effects worked fine. The same thing happens with Hitfilm 4 express. I am currently using Hitfilm pro 2017. Please help if you can.
P.S.: The only effects that are exempt from this annoying glitch are the non-echo effects, so make of that what you will.