Probably because she’s been back for so long, she’s a tax resident and to be compliantWhich 1 ?
It does look like she has at least 1 reg in UK.
SYGOL LTD overview - Find and update company information - GOV.UK
SYGOL LTD - Free company information from Companies House including registered office address, filing history, accounts, annual return, officers, charges, business activityfind-and-update.company-information.service.gov.uk
Interesting enough - its was listed as Dormant in Oct when filing Accounts, but then changed it reg Address in Nov.