3026355 - Nametab is not activated during S/4HANA 2020 Upgrade

During SAP S/4HANA 2020 upgrade at Phase: PARCONV_UPG, below error occurs during Execution phase:

Scenario 1)

--------------- DB-ROLLBACK() ---------------
2EETP334 10:01:35: error in DDL, nametab for "TABLE_NAME" not activated

3 Xstatements:
2 XXXX ALTER TABLE "Schema"."TABLE_NAME" ALTER ("XXX" DECIMAL (000023, 000002), "XXXX" D
2 XXXXX ECIMAL (000023, 000002)) ONLINE PREFERRED
2WXXX000 10:01:35: Retcode 1: error in DDL statement for "TABLE_NAME" - repeat
3 XXX355 executed ( "0:00:12 (12.021690 sec)" )
2XXX345 10:01:47: Retcode 1: SQL-error "7-feature not supported: cannot change field length: XXXX
2XXXX345 : line 1 col 48 (at pos 47)" in DDL statement for "TABLE NAME"

Scenario 2)

2 ETP000 --------------- DB-ROLLBACK() ---------------
2EETP334 10:29:02: error in DDL, nametab for "PRDSCMMATLOC" not activated

3 ETP000 WHERE NOT ( "MARA"."SCM_MATID_GUID22" = N'' )
3 ETP000 >>>>>>>>> DIPGNTAB END_FULLROWS <<<<<<<<<
3 ETP000
2WETP000 10:29:02: Retcode 1: error in DDL statement for "XXXX " - repeat
3 ETP355 executed ( "0:00:00 (0.026230 sec)" )
2EETP345 10:29:15: Retcode 1: SQL-error "391-invalidated view: XXXX: line 1 col 1134

 "Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental."

• SAP HANA, Platform Edition 1.0
• SAP HANA, Platform Edition 2.0
• SAP S/4 HANA 2020

SUM, UPGRADE, ERP, S/4HANA Update, S4 HANA, S4HANA, upgrading , KBA , HAN-DB , SAP HANA Database , HAN-LM-UPG-SAP , Upgrade of SAP Systems on HANA , Problem