Minor MD bug fixes: Bathymetry #2479

Job	Run time
build-postlib-release	10m 7s
build-drivers-release	4m 25s
build-all-debug	5m 4s
build-all-debug-single	2m 48s
build-test-uadriver-debug	1m 57s
rtest-module-drivers	2m 46s
rtest-modules-debug	4m 50s
build-fastfarm-release	2s
build-interfaces-release	2s
build-openfast-release	2s
rtest-OF-5MW_Land_AeroMap	0s
rtest-OF-simulink	0s
rtest-OF	0s
rtest-OF-5MW_OC3Mnpl_DLL_WTurb_WavesIrr	0s
rtest-OF-5MW_OC4Jckt_DLL_WTurb_WavesIrr_MGrowth	0s
rtest-OF-5MW_OC4Semi_WSt_WavesWN	0s
rtest-OF-5MW_Land_BD_DLL_WTurb	0s
rtest-OF-5MW_OC3Trpd_DLL_WSt_WavesReg	0s
rtest-OF-linearization	0s
rtest-interfaces	0s
rtest-FF	0s
	32m 3s

Provide feedback