Hello,
Thanks a lot for sharing your ideas and feedback here!
I’m truly sorry that some essential features are not supported at the moment, but we do understand how needed they are and we do have plans to pay special attention to Event Calendar widget improvement.
Since you’ve added several ideas in one request, I’m going to break them down so that there is one idea in one request.
I’d love to say that we already have a feature request regarding the repeat option, please feel free to vote for it to subscribe to the updates — Allow repeated events display beyond a month.
As for the issue with the popup, I’m truly sorry to hear that. Our support specialist has already found your support ticket and he will get back to you as soon as he has any updates.
Regarding your last question, we’d be really grateful if you could provide some more details about this issue so that we understand the case better. Please feel welcome to provide them in your support ticket as well.
We’ll try our best to make your calendar widget work just fine for you 
Thanks a lot for sharing your feedback and for your help!