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Did you previously roll back to that version manually? Because if automatic updates are enabled your game should be on 1.32.2 regardless of your subscription/acquired DLCs, as patches aren't tied to DLC ownership, only content is.
 
Origins is included in the subscription - and as pointed out above: You being on 1.31.4 seems to be the issue (1.32 is needed to start Origins). Make sure that you haven't manually opted in to the 1.31.4 version (EU4 -> Properties -> Betas -> Make sure you have 'none' in the dropdown list, in Steam).

If that's not the problem you can try verifying the integrity of your game files (same steps as above, but 'Local Files' and 'verify...' instead of 'Betas').

If the problem persists - please submit a ticket through support.paradoxplaza.com for further assistance.
 
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to the Tech Support subforum.
 
Your problem is certainly caused by running a game version older than the expansion Origins. The latest expansion always requires the latest game version to work.