ORA-00900: invalid SQL statement rebuilding lob segments

ORA-00900: invalid SQL statement
I am using version 14.0.75.662
"Rebuild Multiple Objects". I select tables from a particular tablespace and highlight/select them, then use the LOB Segments tab, and "Load LOB segments of checked tables". this throws the error and does not retrieve any LOB objects.
This is strange as I frequently use this feature with no issues, including several times today.
I can still "Load indexes of checked tables" from the Indexes tab without a problem.