Ok, i saw that there is a 'Edit Cuesheet' button in 'Tags' tab when i right click on a single song and choose 'edit'. I did go through each song clicking on the 'Edit Cuesheet' button then deleting the content in the Cuesheet Editor and clicking Update button. It fixed the songs appearance but after awhile the old state of the songs was restored.
What is the point of this Cuesheet option anyway?