I was hoping to use G_DIO_Config_OK, a file global variable, to tell me in the SequenceFileUnload callback sequence whether I could safely try to power off my fixture. The default value is False, and I set it True in a couple of sequences, including the SequenceFileLoad callback. But, even though the sequence file properties are set to have "All Executions Share the Same File Globals", the file global reverts to its default value after the callback has run. Are file globals just not persistent? Do I have to use a station global instead?