Starting with Oct events, we haven't been able to run CSV exports. It works on sept or older events but when I choose a newer event and press Next, a white screen comes up and hangs.
A white screen means you're getting a fatal error. Set error reporting to maximum (in Joomla configuration) and hopefully you'll see the actual error taking place.
Most likely, you are exporting a larger amount of records and your server is experiencing a timeout or memory limit issue. You may need to increase some PHP settings to get around this... like memory_limit or max_execution_time. See the error to know for sure.
Nathan is no longer affiliated with DTH since the recent acquisition. You can connect with him and get any type of Joomla website help at
www.JoomlaEmployee.com
.