Product: The Sims 4
Platform:PC
Which language are you playing the game in? English
How often does the bug occur? Every time (100%)
What is your current game version number? 1.55.108.1020
What expansions, game packs, and stuff packs do you have installed? Get to Work, Get Together, City Living, Cats and Dogs, Seasons, Outdoor Retreat, Spa Day, Dine Out, Vampires, Parenthood, Realm of Magic, Luxury Party, Perfect Patio, Cool Kitchen, Spooky Stuff, Movie Hangout, Romantic Garden, Kids Room, Backyard Stuff, Vintage Glamour, Bowling Night, Fitness Stuff, Toddler Stuff, Laundry Day
Steps: How can we find the bug ourselves? Play with Minerva Charm, rank her spellcasting to Virtuoso, and then gain more ranks after that. It will start deranking her as she gains experience past the Virtuoso rank.
What happens when the bug occurs? Minerva's spellcaster rank starts deranking and she loses the perks she bought with the levels associated with the ranks lost.
What do you expect to see? I expect the system to be similar to Grandmaster vampires, where she's able to continue getting points to spend on perks, but her Virtuoso rank stays the same, even when it reaches the end of the experience bar.
Have you installed any customization with the game, e.g. Custom Content or Mods? Not now. I've removed them.
Did this issue appear after a specific patch or change you made to your system? No
I've been playing with Minerva Charm, and when she ranks up her spellcasting level past Virtuoso, it boots her back down to master, and continues to derank her as she gets more experience. I hope the bug doesn't carry on to my grandmaster vampires too, but I haven't tested that.