The JSON Export module has the following limitations:
•Issue print is not supported.
•Nested tables are not supported.
•Free objects or texts within the layout are not supported.
•Headers, footers, group headers and group footers are not supported. However, the header lines determine the identifiers in the data lines.
•Line breaks within the table lines are not supported. To exclude this as a possible source of error, the use of infinite pages is recommended.
•Projects that use a table of contents or an index are not supported.
•Linked crosstabs are not supported.
•Frames around individual tables and background colors of individual tables are not supported.