This problem affects a number of profiles. One example is:
The issue is that some historical GED imports from 2010 (possibly other years) seem to include a special character that cannot be read. As such, the whole profile becomes unreadable and it appears to the regular user that "Nobody has entered anything".
I had attempted to fix this issue with my bot but due to the nature of the issue I accidentally translated other special characters that didn't need translating (which then needed fixing).
Given the controversy surrounding that, I thought it would be best to raise it as a WikiTree bug instead.