roy orbison in dreams

From the Roy Orbison Mono Compilation string:

Here's how you can tell the difference: Where Roy sings "I remember that you said goodbye, it's too bad that all these things" the word
"goodbye" is sung shorter on the mono 45, and Roy comes in on time for "it's too bad".

On the stereo version the word "goodbye" is extended and he is slightly late on the "it's too bad" line.

So they were fixing that Roy came in too late, but never fixed it for the stereo mix.