Survey123 submission "Getting service information" stuck reading related table

GeospatialManagement

I have a featureclass (checkpoints) which has its geometry defined in Workforce, and is populated using Survey123. The featureclass also has a related table that will use Survey123 to populated records (log of vehicles at checkpoints). 

When I try to submit a completed survey, either on the featureclass or related record I encounter an issue when "Getting service information" on the related record, which halts progress.

Is this a known issue, and does it have a fix?

Thank you.

dougbrowning

Yes I have 9 forms - all with the original RCs (relationships classes).  Then I made 9 more that point from my master Points FC (for Collector) - these are the string ones.

It almost seems like 123 is assuming no other RCs will exist - and so when it finds them it gets mad.

Except that I did all of this last year no problem.  And in certain situations it will work.  In fact I have an exact clone that works just fine now. (after the remove _Attach, publish, readd, publish trick).

I have tried about 100 times, with dif ways, now.

So now again I just made a all new test project (mxd, service, the works). and still hangs.  Remove the _Attach tables - still hangs.  Remove ALL tables - still hangs.  Add the tables back in - works!  Huh?

Try doing this workflow to original service - nope still hangs.  It is just so inconsistent I am running out of ideas to try.

It has to be something with tables or the order things are added to the map.

I can share the whole thing with you if you can take a look.  What is your AGOL account again.

Thanks I am really up against the wall now.  Plus I have 2 more to do.