Looks like an issue with responsive CSS and floating elements. When viewing a project in the catalog from a phone, the div containing the Download buttons (which shows up as a side-bar on larger screens) will overlap with the display of the last audio sections.
Seen here: the latest Firefox on desktop, using dev-tools to act like a phone:

Other browsers handle the overlap differently, but they likely all share this issue. Safari on iPhone does, for sure.
Looks like an issue with responsive CSS and floating elements. When viewing a project in the catalog from a phone, the div containing the Download buttons (which shows up as a side-bar on larger screens) will overlap with the display of the last audio sections.
Seen here: the latest Firefox on desktop, using dev-tools to act like a phone:

Other browsers handle the overlap differently, but they likely all share this issue. Safari on iPhone does, for sure.