Image dimensions validation before sending

I have tried that for five days as well. It can not solve the problem. It says there is a problem with the way CF7 is handling uploads.

I got it working with this code:

add_filter('wpcf7_validate_file*', 'validate_image_dimensions_cf7', 20, 2);
add_filter('wpcf7_validate_file', 'validate_image_dimensions_cf7', 20, 2);

function validate_image_dimensions_cf7($result, $tag) {
    $name = $tag->name;

    // Dit præcise felt-navn
    if ($name !== 'catch-image') {
        return $result;
    }

    error_log("CF7 Dimension Validation started for field: " . $name);

    $submission = WPCF7_Submission::get_instance();
    if (!$submission) {
        error_log("No submission instance found");
        return $result;
    }

    $uploaded_files = $submission->uploaded_files();
    if (empty($uploaded_files[$name]) || empty($uploaded_files[$name][0])) {
        error_log("No uploaded file in submission for " . $name);
        $result->invalidate($tag, "Filen blev ikke modtaget korrekt.");
        return $result;
    }

    $file_path = $uploaded_files[$name][0];

    if (!file_exists($file_path)) {
        error_log("File not found at path: " . $file_path);
        $result->invalidate($tag, "Filen blev ikke modtaget korrekt på serveren.");
        return $result;
    }

    error_log("File found at: " . $file_path);

    $info = @getimagesize($file_path);
    if ($info === false || empty($info[0]) || empty($info[1])) {
        $result->invalidate($tag, "Filen er ikke et gyldigt billede.");
        return $result;
    }

    $width  = (int) $info[0];
    $height = (int) $info[1];

    error_log("Billede dimensioner: {$width}×{$height} px");

    if ($width < 3000 || $height < 3000) {
        $result->invalidate(
            $tag,
            sprintf("Billedet er for lille (%d×%d px). Minimumskrav: 3000×3000 pixels.", $width, $height)
        );
        error_log("Invalidation triggered - image too small");
    } else {
        error_log("Image passed validation");
    }

    return $result;
}