There is no workaround available- these are expected behaviors with the Health Check protocol.
Ensure that all port groups in the virtual distributed switch with different VLANs have the same MTU in the physical switch because ESXi will not detect the MTU mismatch of full paths and Jumbo Frame packets might forwarded to other physical switch ports which are out of the virtual distributed switch. At those ports, there is a risk that the Jumbo Frame packets might be dropped if that port and VLAN do not enable Jumbo Frames.
Additionally, ensure the number of MAC addresses to be generated by the health check will be less than the size of the physical switch(es) MAC table. Otherwise there is a risk that the switches will run out of memory, with subsequent network connectivity failures.