Using expdp to do a schema export is taking extremely long time

I am using expdp in schema mode to export a 300 gigbyte database.
The job status report 99% complete after about 2 hours .
But now the job has been running 30 hours and is not finish.
I can see that it is exporting the domain indexes and had been exporting
the last index for the last 5 hours. Something is not working because I
looked at the table the index is using and it has no data. So, why is it taking
so long to export an index that has no data?
Can someone tell if there is a way to bypass exporting indexes and a easy way
to recreate the indexes if you do?
I am using oracle 11g and expdp utility.

I checked the log file and there are no errors in the file.
There are no ORA- xxxx error messages.
The last line in the log file is as follows:
"Processing object type schema_export/table/index/domain_index/index "
I just checked the export job run this morning and it is still on the same
index object "A685_IX1" . This is a spatial index. It has been sitting at
this same object according to the job status for at least 24 hours.

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