X15 coolant leak (weird)

[LTWON]

All possible, I triple checked the surface before it was set on, bolts were torqued to sequence to 150 then 300 lbs, I let them sit over night then did the 90* next day. Not getting any combustion or excessive pressure in the cooling system, it’s also been ran on a dyno for break in and they didn’t see any pressure in cooling system. Hoping I didn’t just get a bad gasket.