[Koha] Regarding marc framework - extra subfields

Hi, Having a query related to marc framework. Currently we are using 16.05(This is old version, but due to unavailability of internet we had to use this). For our serial control, I added few extra subfields in marc framework for 952 tag and they are added to "more_subfields_xml" coloumn in the items table. Now when I tried to import this sql database(16.05) to koha version 17.11.11, indexing is not working. After deleting the coloumn data of more_subfields_xml in the items table, indexing is working without any problem. Is this a normal behavior or any issue. Please guide me if any possibility is there to import the data into 17.11 without having to delete the data in more_subfields_xml in items table.