Press Proven evo doesn't show on my Al Owairan

Hello. I used the Press Proven evolution on my Al Owairan WW. Before i used it on him, on the preview, it showed me that he will get the gray version of that playstylle but after i completed it, the press proven playstylle it's missing from his card as you can see. Afterwards i used the inside forward on him and that's why he still has his winter wildcard design on him. and that one worked, now he have inside forward++ as a RM tho. It's a bug that he hasn't got the press proven as it was showed in the preview before i evo'd him or it's working as intended and i'm missing something?