libpff_index_node_read_footer_data: unsupported index node type: 0x31.

[schrodyn]

Trying to read an OST file using pffexport with the latest experimental version and I get the following error:

$ ./pfftools/pffexport -v -m all copy.ost
Opening file.
Recovering items.
Unable to export file.
libpff_index_node_read_footer_data: unsupported index node type: 0x31.
libpff_index_node_read_data: unable to read index node footer.
libpff_index_node_read_file_io_handle: unable to read index node.
libpff_io_handle_read_index_node: unable to read index node at offset: 6833504256.
libfdata_vector_get_element_value_by_index: unable to read element data at offset: 0x1974f0000.
libfdata_vector_get_element_value_at_offset: unable to retrieve element: 1668336 value.
libpff_index_read_node: unable to retrieve index node at offset: 6833504256.
libpff_index_read_sub_nodes: unable to read index node at offset: 6833504256.
libfdata_tree_read_sub_nodes: unable to read sub nodes at offset: 0x1974f0000.
libfdata_tree_node_read_leaf_node_values: unable to read sub nodes.
libfdata_tree_node_get_number_of_deleted_leaf_nodes: unable to retrieve node value.
libfdata_tree_get_number_of_deleted_leaf_nodes: unable to retrieve number of deleted leaf nodes from root node.
libpff_recover_index_nodes: unable to retrieve number of deleted descriptor index values.
libpff_recover_items: unable to recover index nodes.
libpff_file_recover_items: unable to recover items.
export_handle_export_file: unable to recover items.

pffinfo shows

pffinfo 20180714

Personal Folder File information:
	File size:		6905208832 bytes
	File content type:	Offline Storage Tables (OST)
	File type:		64-bit with 4k page
	Encryption type:	none

[joachimmetz]

Could you provide format debug output so I can determine what might be different. Also see: https://github.com/libyal/libpff/wiki/Troubleshooting#verbose-and-debug-output