Hi Quentin. Sorry to hear that you’re having issues; sounds like something is definitely amiss. As this is obviously not the default behavior of the plugin my guess there is either a conflict with another plugin or your theme at play. Are you in a position where you can test deactivation of other plugins (and your theme, if necessary) to see if one of them is causing the issue?
Also, can you confirm that you’re running The Events Calendar 2.0.3 and The Events Calendar PRO 2.0.3, and not a version other than those? Please also let us know what version of WP you’re on. We’ll do what we can to assist from there.