This bug is very easy to duplicate as I experienced it multiple times today. Whenever I am playing on the mobile app and try to accept a Slayer Task from Morvran I am told I do not meet the requirements and get pointed towards the Ancient Cavern despite being level 130 and 88 Slayer at the time of encountering this bug today.
To continue training slayer on my phone, I had to use my PC to accept a new task and then reopen the app on my phone, which completely defeats the purpose.
Bug reported already submitted in game, but thought I would warn other players here as well.
18-Mar-2023 04:26:25