Pull up resistors

Greetings. I am currently using chatGPT to assist programing with my scrollwheel project. In this project I am using 2 photo sensors (EE-SX461-P11) to create scroll wheel functions up and down. I've rewired the board a few times. Both sensors work fine independently, but when they're wired together on the same board they have difficulty working fully correctly. They can work, but not as well. I need help with pull up resisotrs. I have no idea where they're supposed to be placed for the circuit to work correctly. Any help is greatly appreciated. Dupp.

Please post text as text.

And most GPIO has built-in pull up/down resistors that can be grogramatically enabled. Check out https://discord.com/channels/818384379197784084/1194546099575341117

Thank you kindly

I had no idea that they had built-in resistors.

Most MCUs has it, but it varies, some has on all and some has on few I/O pins