Man you really like your Phosphorus high eh? I'd try to find one closer to 15-10-20 and just use that all the way thru until you understand the numbers better? or find cannabis specific fertilizer?I was thinking same, probabky high P blocked N, I was more thinking about half veg half bloom feed, or just veg feed, veg is NPK 15-30-15
Your K:N shouldn't be >3 for long times, unless you know what you are doing a specific times and know how to manage/adjust lockouts. Increase your N, lower your PK would be my suggestion.