[gsxrken]

Sounds to me like you’re dropping one fuel pump on the restart. Like either a red relay or the pump itself cant overcome the requirements to get the pump spinning again.
When it happens, you should try to determine if can definitely hear both pumps, and see if the car dies when you pull one relay but not the other. If you have spare relays I’d try them for an easy check, but as flightlead said you should also get after all your split pin relays, widening them with a razor blade or the like, and perhaps disassemble and clean your fuel pump wiring connections.