Are braces meant to cause the need for a bite correction? Gaps between teeth when attempting to fully bite down. (photos)

Hello, I recently got my braces fitted on the 28th of June this year and it is causing a problem. - The problem specifically is when I try to clench my teeth not too hard, ONLY the left side (molars and canines) bites together. My incisors and right side of my mouth USED to clench together normally, but suddenly today they stopped biting together. - Another problem is that there is a wound on my cheek because it keeps getting caught by my teeth and it hurts a lot from accidental biting.

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