Continue loop upon empty/missing result

Hi,

I have a workflow that loops over a folder with protein structures, and then some calculations are done on each protein. Then the results are written separately for each protein, and the loop reiterates. However the loop stalls when a calculation gives no results and thus produces an empty table somewhere before the loop end.

How can I ignore (skip) these empty results (I don’t need them) and continue with the next iteration? Are there specific nodes for this and a good working example? I am a bit reluctant to share my workflow but I hope you understand my problem at hand.

Thanks/Evert