J Root woes on v4

Hello, It seems that J Root has suboptimal routing over v4 but v6 is OK from my POV in Montreal, Canada. Route changes occurred ~5h ago. v4: ~260ms somewhere in Asia via our HE bilateral in Montreal, Canada (AS-PATH 6939 45629 55423 55423 26415 396651 396651) 55423 might host a legit J Root node, but it should be exported outside their region by AS45629 or HE. v6: ~24ms in Chicago via Arelion IPT in Montreal, Canada (AS-PATH 1299 7342 36631 36631) This one looks legit. Eric