using LiquidCrystal_I2C in embedded class

Hello togehter,

i tried to create a separate class so encapsulate some functionalities i want to implement.

i'm using PlatformIO.

I'm more or less fresh in writing cpp code. The last time i did that, was 10 years ago.

Once i'm added my own class in my main project file, non the IO ports works anymore.

Is there a limit of embedded classes in other classes? Once i'm using the same code i used in my own class in my main project without the class, everything works fine.

Can the embedded class cause this issue. Is there a compiler parameter which helps for this?