From fd191877cd2dbc053d784e80976d607a2cfdab7b Mon Sep 17 00:00:00 2001
From: Clemens Schwaighofer <clemens.schwaighofer@e-graphics.com>
Date: Mon, 5 Jun 2017 16:48:19 +0900
Subject: [PATCH] Fix for not showing progress bar with single progress bar

---
 www/libs/Class.Progressbar.inc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/www/libs/Class.Progressbar.inc b/www/libs/Class.Progressbar.inc
index 67029c99..6b20a971 100644
--- a/www/libs/Class.Progressbar.inc
+++ b/www/libs/Class.Progressbar.inc
@@ -77,6 +77,8 @@ class ProgressBar
 			$this->width = $width;
 		if ($height > 0)
 			$this->height = $height;
+		// needs to be called twice or I do not get any output
+		$this->_flushCache($this->clear_buffer_size_init);
 		$this->_flushCache($this->clear_buffer_size_init);
 	}