When reading the following EX file (attached), node group bob is created and node 1 added, but data group bob is not created. The opposite order similarly defines only the data group, so the first wins.
Group name: bob
!#nodeset nodes
Shape. Dimension=0
When reading the following EX file (attached), node group bob is created and node 1 added, but data group bob is not created. The opposite order similarly defines only the data group, so the first wins.
Group name: bob !#nodeset nodes Shape. Dimension=0
Fields=0
Node: 1 !#nodeset datapoints Shape. Dimension=0
Fields=0
Node: 2
missingdatagroup.txt