I just downloaded, added trademark and registration symbols to product titles. TM works but still no dice on ®.

At the top of the screen, I noticed this message: "collation: latin1 "

In Libre/OO, I can choose:
Unicode (utf-8)
Western Europe (ISO-8859-1)
Latin 3 (ISO-8859-3)

Notably missing:
Latin 1 (ISO-8859-1)

Could that be the problem? What if I switched EP4 to Latin 3 (ISO-8859-3)?

Hope that's not horribly dumb, just tossing out thoughts.