Left channel is quieter than right one

Hey guys,

all my recordings are louder on the right channel even though I setted both equaly. I recorded in mono and linked them to a reverb and delay channel where the right panel hits out more. You can hear and see the difference even in the master channel. However, the delay channel hits out more on the right side visually you can only hear it on the left side.

I’m really confused and kind of desperate at this point. Does somebody know what to do?

Thanks in advance!