Hi
That new error seems to be a known issue that is fixed in Revision 100 and higher.
The workaround to resolve it is to perform an unload of the table, e.g.
"UNLOAD TABLE <schema_name>. <table_name>" and Restart the database
For instructions on Load/Unload a Column Table into/from Memory:
http://help.sap.com/saphelp_hanaplatform/helpdata/en/c1/33165bbb57101493c5fb19b5b8607f/content.htm
To prevent it from happening normally you can perform an unload of the table, see above. Unloading and re-loading will prevent that the issue occurs at all.
For a permanent solution you can upgrade to SAP HANA Revision 100 and higher
Please note that: Before adding columns to a table in productive systems, which may happen in the context of
ABAP transports, plan accordingly in order to avoid unforeseen downtimes. Ideally unload relevant tables first
before applying transports to avoid subsequent activation errors.
Cheers
Kingsley