PRs shared between accounts

Two of us share the same Zwift app, but with different accounts, and for some reason in London my PRs are showing up on her list, even though I log in with my account, and she logs in with her account. She finds this disturbing, because she wants to focus on how she does versus her prior efforts, not mine.

I wonder if this is related to how prior times are recorded on the iPad, and since I have only observed this in London, whether it’s specific to the London world.

I’m quite confident I was logged in as me, and she as she, because the activities are showing up on our respective accounts.

I wonder if this is perhaps due to internet drops, but I have no idea.

Here are the London Loops from Strava:
Screen Shot 2020-05-11 at 6.36.26 PM

Here is from Zwift. Note the 29 minute time was mine, not hers: