Nobody is saying that your original videos aren't right. Using Handbrake or any other software to convert it is just one way of working with a clip that PD (or any other editor) can't work with directly.
There is an issue with Win10 that has not yet been addressed by Cyberlink that causes certain clips to fail in PD. You tried my solution for that and it seemed to work, but then you ran into new sets of problems.
I don't blame you for being upset, and I'm sorry you had to go through all this effort only to be disappointed by something new and unexpected.
There are several other ways of getting PD14 to work with your clips without having to convert them first, and if you are willing, you can start a new thread and post the results of the "DxDiag" test that's spelled out in the Welcome sticky at the top of the index page.
That's the only way anyone can tell why you're not able to work with your clips now. You could so in PD12 before you updated to Win10 (I assume) so something happened with Win10 and PD14 that broke your functionality. Usually, what's broken can also be repaired, but you'd need to be at the right place to start something new.
Please post Parts A,B and J from the Welcome thread in the PD14 forum whenever you're ready, and I and others will try our best to assist you. We're basically all volunteers here and we help because we want to share our knowledge experience.
It's also Ok if you're really just done and want to find another editor. If so, I wish you good luck.
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