I think heat has a much more heavy burden on flavour & terpenes and not on Cannabinoids as these are oily encaptured in the bulbs of the trichs. Also, hemp is a C3-sunplant that can tolerate heat up to 50°C (photosynthesis begins to throttle around 35°C and comes to a halt around 45°C). In its natural habitate - this state is oftentimes reached during full summer middaylight and these plants have developed tactics to being able to cope with it (actually trichs ARE is one of this method). I've also grown with much higher temps 35°C ambient + 600w HPS in a 4x4 and the sativas didn't even experience heatstress....
Is this perhaps a tissue culture derived plant?
BB doesn't publicise it's formulaes so we have no data to look into micronutes... I've written them numerous times but they didn't give in!