Thank you for your responses so far 🙂. A few things just to clarify:
I've been using Videopad for years since i was a clueless kid in my late teens, as the first ever "proper" editor that i ever bought. The vast amount of my technical knowledge comes from clueless trial and error, so a lot of the keywords that folks will offer me tend to end up as technical mumbo-jumbo in my mind! 😅
Having looked a little closer at the project, i can explain some more of the core details:
All of the image files in the video are untouched and working as intended, with all their edits intact. The MP4 files howether are all blank on the timeline. When i click play on the project, they produce their original sounds, even though they were all edited to be muted (amongst other edits). The view screen is black whenever an edited mp4 snippet is supposed to be playing. When i click on these semi-visible files on the timeline and select "effects" to check on the edits, i find out that its only offering edits for audio, with the entire range of visual edits no longer being present, as if it was solely an audio file i had selected and not a video file.
Also, i dont know if its connected in anyway, but i recently went into my recycle folder and deleted a ton of autosaves from videopad that were chucked in there in order to free up some space on my computer. When i went back onto videopad afterwards, it asked me to resolve 3 allegedly missing files i had deleted from the project. TRhese 3 files were stored with the others on the far left tab but never actually used, so i just clicked continue. Like i said after that one of the audio files went funny, i click off and return next day, and now its all solely the mp4 files.
So sorry again for this overload of issues, when i first bought the product i didn't have any social media of any kind (other then youtube) despite my modern teen years. I think i'll first start with just getting this project back up and running and then later on go through the other historical problems one by one? Thanks again.