It's unclear what you mean by "replace the current info with new info." What version of VP is being used? (Listed at the left-bottom corner of the window.)
Each time an A/V clip is loaded, both audio and video are imported, and can be replaced with other content. It may be necessary to UNlink audio from video.
Let's have a look at the clip that has no audio...
Upload the file/s to a free server, such as Google Drive or MS OneDrive, get a shared (public) link, copy the link and paste it here or to me in a Private Message via the mail envelope in the top-right corner of this forum. When using Google Drive, if necessary change "restricted" to "anyone with link can view."