Photoshop 2026 - Issue printing in 16 bit output

Hello, I work in a printing lab and have noticed a glitch when going to print through the 16 Bit output option. 

It seems to remove the Magenta ink channel from the print itself. I've tried a couple of different setting, profiles - each with the same result when 16 bit output is clicked on in the print dialogue box. 

I've attached a comparison image below of how its printing and what it should look like.

(The more saturated sky is the proper output) 

I had a colleague run a test on the older Photoshop, with the same settings / file and have no issue there. 

It is definetly not a profile or paper issue. 

Anyone else notice this? 

And if its a bug, will it be fixed in the update?