What does "Sync Interfaces > UDP packet retransmissions" do?

Questions
1

I can’t find anything in the docs.

I use DDP to connect a few strips together into one virtual strip. They’ve been randomly flashing, which is quite frustrating. This issue says the problem is a UDP buffer overrun. Would this option help me? If the buffer fills up and a packet or two get dropped, would retransmitting keep the lights on?

2

The issue is valid for DDP not UDP sync.

Packet retransmission are just that - WLED re-transmits a UDP sync packet number of times. The content is identical in each transmission. It helps when WiFi reception is poor.