A zap that previously worked now hits an error. 
The step is ‘New Record (Saved Search)’ to poll for records in a particular state notified by a saved search.
The SS returns valid records. In the run details I get an expected record id, the correct Saved Search ID, then I expect all the fields and values of the specific record but get something called HOIST field with a long string. Appears zapier cannot read the json passed from netsuite to zapier or the response is empty.
Examining the rest execution log shows a sql query and a couple of jsons returned amongst them but no json with the custom record. I don't know the zapier process and what should go back and forth but there are a number of request and responses empty or just have ‘{ }’ s content. That feels not right. 

in Zapier i see 

I've reauthorized the netsuite connection and deleted browser cache as these were hints to resolve but no luck. All zap with that connector behave the same. No similar netsuite error found online in forums.

its a development in progress so I might/probably have changed the custom record or elsewhere something that might cause this netsuite behavior. 
for now I'm confused so if some of you wizards have any direction i could search for a resolution would be great.

thanks in advance for suggestions!