Help with lockout of deficiencies. Don’t know what to do from here I already flushed em but doesn’t seem they uptake anymore

So your about half way through flower if not past half way. Your growing with a 50/50 mix coco/soil. I don't have much experience in mixing the 2 media but according to the diary your feeds have always been a ph 6.5. So when its just coco the ph range is 5.5 to 6.5 soil ph is 6.0 to 7.0. I would be tempted to lower you ph to 6.0 and hopefully it should let more nutrient be available to the plant. Also have u made sure you have run off and check the ph and ec from it.