Carry forward losses in my CA is less than my Federal amount how that happened?

Hello and thank you for giving me a feedback. I am a CA resident and I noticed my carry forward losses in CA and Federal are different amounts? Unfortunatley I don't have the forms but at some point they were the same. It was all done properly so it's not an error. What causes the numbers be lower in my CA return? FYI I received a distribution of stock sales in CA corporation? Does that effect CA Carry forward losses somehow to be different with Federal? Thank you