Saving results of API to list array..missing items

this was working. I create a master thing and then run an api workflow which creates in a separate table of things … in the api workflow i’m adding these things to a list in the master thing…for weeks this has been working without fault.

now it doesn’t… it only adds about 90% of the things to the list… on the odd occasion all of them… there is no pattern or rationale

All the sub things are present in their respective table.

im showing the sub things in a RG…an alternative is for me to do a search to retrieve the sub things but im concerned if the app scales this could be onerous for users based on speed of search if i use this method as the data source vs the master things list of sub things.