That’s not how software works, dude. Programs are a series of precise instructions, and a computer will always follow what the instructions say, exactly, unless something interferes.

There’s no luck involved, ever. Luck is also an imaginary construct.

It could be a variety of causes on your end, and I saw many people make suggestions to you as to identifying and resolving the problem, but you refused all of them.

You want to hate Dropbox and you want others to join you. I do not know the reason, but this is the only conclusion available based upon your behavior.

We are here if you are willing to troubleshoot to achieve the results you desire.