mpv player script to open directory and select currently playing file (Windows).

open-in-explorer.lua

-- open-in-explorer.lua

mp.add_key_binding(nil, "open-in-explorer", function()
    local path = mp.get_property("path")
    if path ~= nil and not path:match("^%a[%a%d-_]+://") then
        path = string.gsub(path, "/", "\\")
        mp.command_native({
            name = "subprocess",
            playback_only = false,
            args = { 'explorer', '/select,',  path .. ' ' },
        })
    else
        mp.osd_message("Invalid path: " .. (path or "No path provided"))
    end
end)

Was the fix just appending a space to the path? Please submit a PR with uosc since you have a setup to reproduce this. 🙏

Yea, a trailing space was all it takes to fix this. I've submited the mentioned PR.