PS5 Profile Save Issue When Starting Tsw6

I didn't even get that far. I imported my TSW6 profile, navigated to Trains > Journeys > Training Center, and I received the CE-100028-1 error. This is is the same behavior that I was seeing with TSW6. Profiles can be corrupted when just browsing Journey Mode; completing a tutorial/service/scenario can trigger the bug too. There is clearly something wrong with high-level profiles as we determined last year.