Query Results tables created by the CMDB Query Builder feature will be counted as Custom Tables. These table names start with u_cmdb_qb_result_... and one is created for each saved Query.
These tables are showing up as custom tables (in sys_custom_db_object/ua_custom_table_inventory) even though they should not be counted towards a customer's custom table allotment.
The number of custom tables now has an impact on license fees, and so it is important this number is accurate.
In a Quebec instance
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When fixed, these will not be counted. In general, the design of an app like this should either stop creating custom tables or always extend a base table, which can be added to the list of excluded base tables.