function updateWaitbar(currentIteration, totalIterations)

if currentIteration == 1

    % Check if the waitbar already exists using its unique Tag
    hWaitbar = findobj('Tag', 'MyUniqueWaitbar');
    
    if isempty(hWaitbar) || ~ishandle(hWaitbar)
        % Create a waitbar with a unique Tag if it doesn't exist
        hWaitbar = waitbar(0, 'Starting process...', 'Name', 'Processing Progress', 'Tag', 'MyUniqueWaitbar');
    else
        % Waitbar exists, reset the progress bar
        waitbar(0, hWaitbar, 'Resuming process...');
    end

elseif currentIteration == totalIterations+1
    % Check if the waitbar already exists using its unique Tag
    hWaitbar = findobj('Tag', 'MyUniqueWaitbar');

    % Close the waitbar after the loop is completed
    if ishandle(hWaitbar)
        close(hWaitbar);
    end

else

    % Check if the waitbar already exists using its unique Tag
    hWaitbar = findobj('Tag', 'MyUniqueWaitbar');

    % Calculate the progress fraction
    progressFraction = currentIteration / totalIterations;
    
    % Update the waitbar's progress and message
    if ishandle(hWaitbar)
        waitbar(progressFraction, hWaitbar, ...
            sprintf('Progress: %d/%d', currentIteration, totalIterations));
    else
        % % If the waitbar was closed, recreate it
        % hWaitbar = waitbar(progressFraction, 'Resuming process...', 'Name', 'Processing Progress', 'Tag', 'MyUniqueWaitbar');
    end
    
end