CONVENTION between Great Britain and the Argentine Confederation, for the Settlement of existing Differences and the re-establishment of Friendship.—Signed at Buenos Ayres, November 24, 1849.
[Ratifications exchanged at Buenos Ayres, May 15, 1850.]
Convention for re-establishing the perfect Relations of Friendship between Her Britannic Majesty and the Argentine Confederation.
If Las Malvinas was important it would have been included. Period. If I'm buying your house we don't exclude mention of the garden in the contract because we can't agree on who gets it. Duh. We would agree to call it out and settle later - or much more likely - no deal. Even as a footnote*
For context the Brits and the French wanted to go home, having defeated the Argentines at great cost. The Argentines wanted their river back and the establishment of free trade. Please - its insulting our intelligence to suggest that Rosas and the Brits couldn't agree on a couple of rocks 2000km away to sweeten the deal one way or the other. The most likely truth is the Brits said 'no way Hose' and your man at the time rolled over to get his river back. The islands were not important to him - he had bigger fish to fry locally and wasn't in a position to project naval power 2km never mind 2000km.
I accept there may not have been consecutive 50 year gaps in diplomatic protest, but the point remains that it was sufficiently unimportant as an issue for multiple decadal periods to elapse on numerous occasions.
And your thoughts on the Argentine rejection of the International Court offer in 1947?
* PS this convention of perfect friendship and settlement of existing differences excludes Las Malvinas because we can't fix that one in this particular Treaty. Watch this space.