Hello,
I have been updating my website in a staging environment and have done what you have recommended to other users who have experienced similar problems by removing, disconnecting and then reconnecting again. In the backend of my website it says the license keys are now valid, but on my plugins section it doesn’t come up with an update version and says at the top of my wp dashboard:
“The following plugins are out of date: Events Calendar PRO 3.9.1. All add-ons contain dependencies on The Events Calendar and will not function properly unless paired with the right version.”
I wandered if this was something to do with updating the site in a staging environment, so there is a different url. for example staging.website.co.uk
Thanks