Land Registry Title Deed - Charges Register. What items might appear here?

I've bought a copy of a title deed to check out a potential landlord. Never have I seen one of these before.

I've noted the Charges Register section where there are two entries of the same date, one simply "registered charge", the other says, "Proprietor: HSBC - of mortgage service centre".

Could this be something negative? It's a few months ago so obviously I'm wondering what it might be as the house was purchased over 10 years ago.

Read more: Land Registry Title Deed - Charges Register. What items might appear here?