Hi. It wasn't working properly before ROI either, so it's been broken for quite a while. It may have something to do with the legendary artefacts but it's doubtful it will get fixed anytime soon.
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We have had this discussion before. Not a lot of players noticed. The effects started to randomly disappear or would not work for days. Changing marks around on your character could 'revitalise' the effects but then they would start to disappear again after a few days. It was happening a while before the new artefacts and ROI came in.