I have created a flow that creates several thousand records in our instand of Dynamics 365. However I was receiving a 429 error (that I was hitting the Dynamics API to often) and the flow failed a few times as a result. In order to remediate these error, I updated the Retry Policy to below. 
As a result, I am no longer getting the 429 errors, but records are not being created. It missed 314 out of 6400. All the flows are marked as being successful but clearly they were not. Any ideas on what would cause this?