We have had a few reports of this, it seems to be an iOS calendar issue, please complete the following steps:
First, open your phone settings, go to 'General' and then 'Language and region'. Open your calendar and change the current value to anything and then set back to Gregorian. Once you've done this, restart the Commusoft app (double-tap the home button and swipe Commusoft away) the dots should appear now. If not, please get in touch with our support team and we can look into the issue for you.