Good evening GeneĀ and welcome to the Events Calendar Support forum!
Thank you for reaching out to us.
We are sorry to hear about the button not being visible.
I would love to help you with this topic.
This looks to be either theme specific or coming from your first setting underĀ Events -> Settings -> Display (you could try the full styles option).
Either way, try adding the following CSS rule to your style.css file or in your Custom CSS metabox:
.tribe-image-upload-area input#EventImage {
filter: alpha(opacity=1) !important;
opacity: 1 !important;
}
Let me know how that goes.
Best regards,
Geoff B.