I'm seeing a second pair of (really squashed) OK and Cancel buttons at the very bottom of the ZPlayer Options window accessible via:
Settings->Options->More Options
Code:ZC Player, Version 2.55 Nightly (Alpha 119/120) Build Date: 3rd February, 2024 at @ 07:17:57 EST Built By: UNSIGNED Tag: 2.55.0 Nightly (Alpha 119/120)