Inconsistent df -h results with ACFS on X4-2

A couple of days ago, node0 showed negative used values and node1 was ok.  Today node0 is ok and node1 is showing the inconsistent results.  acfsutil info fs is reporting correct values.

Is this a known issue with ODA X4-2 running 12.1.2.6.0?  A quick search on MOS did not uncover any useful info.

BTW, this ODA was rebuilt from BM ISO 12.1.2.5.0 and upgraded to 12.1.2.6.0 before any databases were created.

[grid@node0]df -h | grep datastore

Filesystem

Size  Used Avail Use% Mounted on

/dev/asm/datastore-330

                   1.1T  785G  333G  71% /u01/app/oracle/fast_recovery_area/datastore

/dev/asm/datastore-311

                   146G  124G   23G  85% /u01/app/oracle/oradata/datastore