The "Add New Activity" button on the Ribbon("Activities" view) is disabled, the account is active and no custom code/changes have been made to the ribbon button in question. The button on the "Closed Activities" view is enabled(I'm able to create a new activity via the button).
Has anyone else experienced this? a Few users and myself experienced this issue, the issue resolved itself on my machine(I'm able to create activities via the button on the "Activities" view again).
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