Hello,
Sketchup randomly started using an older version of Openstudio (2.9) I have openstudio 3.1 on my computer and I select extenstions → openstudio → check for update: it incorrectly states that I am using the most recent version of openstudio. Does anyone have any advice for activating openstudio 3.1 and deactivating 2.9?
Since you are trying to update using the extension’s own functionality, I’d contact the extension developer directly. Might be an extension bug.