Unable to accept or decline invite to Realm.

My friend has invited to a Minecraft realm and I cannot accept the invitation .

• I am running on a completely vanilla Minecraft no mod client no resource packs.
• Uninstalled Minecraft and Deleted %appdata% for Minecraft (.minecraft).
• Verified Port and Firewall configuration.
• I AM able to join Multiplayer servers without issue.
• Invite appears in list but the buttons to accept and to decline do not function.
• Attempted on version 1.12 which is the version the Realm is running on.
• Have tried with multiple invitations.
• Other than this specific issue Minecraft is functioning as it should.