Zone starts circulator but doesn't fire boiler - again

Hi everyone. I've read almost all the posts on here trying to determine a fix for my issue but just can't find a solution and going insane so i signed up for an account to post my issue. I have a 4-zone house (downstairs is radiant, upstairs is baseboard) and 2 circulating pumps one for upstairs and the other is for downstairs. I would like to find the person who wired it up and yell at them for a bit for the frustration. So what happens is when i call for heat from the upstairs zones, the boiler fires and the pumps come on. A little while later, the pipes get hot and everything is good. On the other hand, when the downstairs calls for heat, only the pumps come on without any heat - so pretty much in order to heat the house, i have to turn the upstairs on (not very efficient). There are too many things happening that I am trying to determine where the issue is. I want to simplify it as much as possible: Zone 1 (upstairs):