Xiaomi IR Remote sending weak signals

Hey, I’m new to Home Assistant
I have started using the Xiaomi IR Remote and used the learn_command to learn the remotes for the devices I want to use.
I have 2 tv’s, a radio receiver/cd player and a ac unit
I can turn on one tv (Lg) and the ac with no problem, but when I try to turn on the other tv (sony) and the receiver, I have to press the button a couple of times to turn on the device, and when I press the button the Xiaomi IR Remote light has a weak flash opposite when I turn on the first 2 devices, when the flash is normal like I used the Mi Home app
Did someone experince the same problem?