Pioggia

Hi everyone, i've already read about this bug but it seems like i'm not going to be able to solve this on my own actually. The last time i played was on 2017 and yesterday i wanted to try the game again but i am not allowed to switch my pokèmons with the ones i've captured and are now in my Pc for some weird reason. The weird thing is that actually i can swap the first 2 pokèmons of my team but not the rest. I am now sitting in Hoenn and my team is: Marshtomp, Makuhita (which i can swap because they are now in the first two slots of my team) and Pidgey, Kakuna, Weedle, Hoothoot. It should be something about Region-lock or whatsoever but i don't know how to fix it, can anyone give me any help? Edit: Nevermind, since they were lv.3 Pokèmon and i guess they were locked due to the pre-merge; i just released 'em, now it's all fine; you can close the Thread ^^