Pinguicula Tina has a tubular leaf

Hi everyone!

This is my first post, so if there are any mistakes, I'm sorry.

Well, my Pinguicula x Tina has been giving a lot of flowers and sprouts for the last few months, and she is a beauty. I'm not an expert on carnivorous plants; I just love them, and they protect me from bugs.

So, I don't know if growing a tubular leaf is a good sign or not. Is this normal? Never saw this in my other Pinguiculas. If there is anyone who can help me, I will be really grateful.

Thanks!!