How many characters of the song title does your factory radio display when on an XM station?

Mine has been displaying 8 since I bought the truck but the other night it was displaying as many as it does on FM, about 14. The next morning it was back to 8 again.

XM does not know why or how many are actually supposed to be displaying and neither does Nissan.

I know it’s a silly thing to ask about but just wondering if this is another issue with my radio or if it is normal. Currently waiting on a replacement head unit, but pretty sure the problem is the XM tuner or antenna.