I think that's a problem due to "Your" being prefixed to the "
Singular name for subscription/membership" and "Plural name for subscriptions/memberships" parameters. Where specifically are you seeing this? Ideally those parameters need to go away entirely and strictly use language strings for those strings. Looks like it's combined with the following language strings.
Your current %s
%s's current %s
Your current and past %s
%s's current and past %s
Ideally those would be adjusted to account for the language structure, but I'm unsure if it'd make other usages make no sense.