Marlin firmware fork for MakerFarm i3v w/ auto bed level & Roxy's enhancements

[Roxy]

Can you tell me where in the code this was fixed so I can check the setting?

It isn't a setting. The code is different. If you are running Dacb's MakerFarm fork of Marlin, you should have it. And, unless you are giving the G29 the E option, it is only going to engage the Z-Probe once at the start. It will wait until the Z-Probe is raised at the end to unengage the probe.