Having an issue with car not starting after car is warm after a drive. Car will not crank, I just get a click or nothing at all. Then wait a while and it cranks or get a jump and it cranks.

Cleaned all connections and checked grounds.
Replaced the battery and starter the other day and same thing happened twice since then.

tested voltage on battery 12.6-12.8 with car off. with car running alternator is good at 14+ volts.

Brand new starter and battery and alternator is good

today drove home in traffic from work parked. Turned car off and immediately tried to start it back up and it wouldn’t not start.

any ideas anyone? Ignition switch? I’m clueless at this point