Last time it was APE tag that was creating problem. after removing APE tag from song my problem was solved by now. even after removing APE Tag it still showing the data in media info.
You could cut and paste the tag data and see if unsupported tag fields are then removed. (you should have read and delete enabled for all tag versions in File>Options>tags>Mpeg)
Otherwise: check the file for consistency with these tools
and see if there is anything suspicious
and if all this does not help, please provide a sample file.
MP3diags reports a frame "SYLT" - which is not supported by MP3tag.
Yet, I just downloaded 01 Aakhir Tumkhein Aana - and that has no SYLT frame in it....
I also tried "Ho Jata..." and that also features only UNSYNCEDLYRICS - which is supported.
So I cannot test, whether SYLT gets removed or not.
(I have a doubt whether doing this thing mixes up tags to other mp3)
Does it recognizes from which mp3 it was cutted and to which mp3 it is pasting again.
Eg: if i took 10 mp3 songs and select them and use tag cut. and then after cutting i use tag paste. what are the chances it is going to paste to the same mp3 from where it was cut. as the tag information is on clipboard.