Issues with converting swatches to Pantones in Illustrator

Hello,

I haven't had this issue before but when I convert my swatches to PANTONES in Illustrator they revert back to Out of Gamut Warning. I've restarted Illustrator, the computer, and still nothing.

Here are my steps;

I select all the colors I want to switch to Pantone

I create a "new color group"

Click Edit Color Book

Then clicked Limits the colors to a colors swatch library

Chose Pantone + SOLID coated

And I still received the Out of Gamut Warning even tho I already clicked the cautionary triangle symbol to put them into CMYK range.

I did this over 5 times and one file actually worked ( I have no idea how) but my other files are having the same problem.

Please help!