I can confirm that the arkanian relic was double bugged since the beginning. Seems they just fixed one of the bugs. I was making a bug report about the double bug of the arkanian relic at one time.
Atleast the dread forged one is fine and doesn't have any bugs at the moment.
Hmm... I do wonder, if this lockout bug makes the Arkanian Warding Relic better.
Assuming the 40s lockout halves the number of procs, 7*1360 is only 9529 damaged absorbed (vs 10360).