Copy Paste not working in Excel

usesrpf 

First if all, let me explain a bit more what lies behind the questions. As I said in my first post, we needed a more complete description of the symptoms, as that's what's needed before the correct treatment can be determined. You presented an initial description only. You've now given a bit more complete description, with your image of rows copied and pasted, but at the time, we only knew that only about 20 out of as many as 50 were accurately copied.  So here's an analogous situation for your consideration, to illustrate the necessary process.

• You go into the doctor's office with a complaint: "My left arm hurts. Please give me a solution (i.e., fix it)." Let's assume that your doctor has seen this morning five other people with left-arm-pains and they've all been sprains, treated by some pain killers and a routine of physical therapy. Would you want your doctor to prescribe that same treatment without further question?
• I hope not. 
• Left arm pain can be caused by multiple things: sunburn, sprains, abrasion on the skin, compression fractures, more complicated fractures, ... up to heart attack. To treat your complaint with the same treatment that worked for the last five patients would be malpractice. First we need to get the symptoms better defined. That might take one minute or less--just looking at the skin would take care of some of the possible causes--but it might take longer. And there'd be questions, physical probing--turn your arm right, now left; and possibly an EKG to eliminate (or confirm) the heart attack possibility if other questions pointed in that direction.

My questions were intended to serve that purpose of probing for how your complaint, "not copying consistently," more fully manifest itself. None of them were suggestions for treatment. So question #4, for example, was not how I was suggesting you resolve the problem, but a way of saying (back to the analogy) "turn your arm to the left, now to the right"....experimenting with a part of the situation, to try to undercover what could be going on.

Your situation is a tricky one to diagnose. Even your recreation of it just raises more questions, more possible causes.

That display, and the fact that rows sometimes move to a different row, relative to the origin, makes me wonder if there are hidden rows in the source data, or hidden columns. Is that possible?

NikolinoDEhas suggested a treatment that may or may not be what's needed. Have you tried it? I've never heard it said that the clipboard itself might occasionally need to be cleaned. Worth trying.

Anyway, at this point, I'm wondering if you could post a copy of the actual Excel sheets. Working just with verbal descriptions, even with static images or representations, just isn't the same as seeing the actual "patient"  And please do it as a new posting in the chain, not as an edit to the original. That would help any other potential helpers here recreate the chain in its full chronological order.