Lucas Germano

This bug happens whenever I accept a contract to save one kerbal stranded in orbit of Bop (it does not occur when they are at the surface of Bop). As soon as I take the contract, it is automatically marked as failed. KSP version is 1.3.1.1891, with no mods other than Alternis itself and the mod recommendations (Windows Transfer Planner, KER, Kopernicus) plus KAC. Any ideas or solutions?