Tamagotchi P Deco pierce not responding? :(

I know I'm new Ive used this forum since i got my IDL in June last year but Ive only just made an account. (maybe I'm just shy?)

But now I'm having problems.

In February i got my first Tamagotchi-P which will be known as PINK.

with it i got circus and royal deco.

I have used BOTH with Pink for last few months.

Last month i got another Tamagotchi-P known as BLUE.

i shuffled the deco pierces around just to see how they looked.

I currently have the circus one on BLUE.

But i cant seem to get royal to work on PINK.

its been days (over a week) and it wont show up anything on the tamagotchi.

I have checked that there is no circus deco information on the PINK ( i didn't use circus much until i got BLUE).

on Pink when i go through the book which shows previous tamas it shows the royal henshin tamas Ive had before on there.

Is there a way to reset/refresh the deco reading?

I have searched as long as i could through this forum regarding my problem and it just made me more confused

should my used decos NOT work on my BLUE at all? i don't know if royal works on blue but circus is and HAS been used ONCE on PINK.

do you have a pierce related character on your pink p's? you can't link a change pierce while you have a pierce character. i have a pink p's and a blue one too, and i have 3 deco pierces and they can be linked at any time, but it will ask you "Replace __'s data and link?" then "are you sure?" and then it will link. sorry if it's confusing. uwu

Oranda is correct, if you did use the change on one then to be able to use it on your blue p's then just unchanged and then put the deco in the blue one and it should work <3

No i hadnt any data that would have stopped it working. I did a full reset of Pink last night and still nothing both decos work on blue and none work on pink. i think the deco port might be damaged on it?

is the deco pierce connector dirty? maybe you should just sorta blow in the pierce connector and the pierce itself and see what happens.

yeah I haven't heard of that happeneing...I wonder if there might be some tutorials onlije that you could google? im so sorry abo this <3