Paint Shortage

I'm in the process of having my '68 barracuda's body completely restored & it is ready for paint (B5 blue). My painter uses PPG products exclusively & he tells me there is a national shortage of blue toner & he can't find it anywhere. How could this be? It's a standard color from the largest supplier in the world. He won't use another brand because of warranty issues in mixing of formulas. The car already has a base coat of PPG on it. It's been sitting for 2 months now & I would like it finished before I have to put it away for the season. Has anyone else had this problem? Any info on when it will be available?