The sealant ring has to lay nicely in its groove. Furthermore, I hope the screws ware not too long and crating pressure from within the screw hole. It looks like layers separated... It could also be that on assembly the screws were not tightened balanced... like you do when you put a wheel / rim on a car.
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The sealant ring has to lay nicely in its groove. Furthermore, I hope the screws ware not too long and crating pressure from within the screw hole. It looks like layers separated... It could also be that on assembly the screws were not tightened balanced... like you do when you put a wheel / rim on a car.