Thanks for the responses.
GROUP_LENGTH had no effect.
The file really is in that staging directory by that name.
I was under the mistaken impression, that if you supplied an .IND file, ARSLOAD had no reason to use the indexer parameter. I had thought this was only read if the utility determined that it had to index the report in order to load. Fact is, I did have to set the indexer to generic for it to work. I had thought I had done this in the past to load large amounts of input to an existing application without changing the indexer from ACIF or PDF. If so, this is now required in Version 9.
Fact is, a lot of things work differently, or not at all, in Version 9. We came from Version 7, and I have to consider this migration to be a downgrade, based on what we've experienced so far.