Let's say one would modify manually an UmiTemplate JSON and set the EconomizerType to "DifferentialEnthalpy", the Template Editor will fail to open the template library without much debugging info.
Running Basilisk in Debug mode allowed me to inspect the Exception thrown by NewtownSoft.Json:
"Error converting value \"DifferentialEnthalpy\" to type 'Basilisk.Core.EconomizerType'. Path 'ZoneConditionings[0].EconomizerType', line 2197, position 46."
Then, looking at Basilisk.Core.EconomizerType, we can see that the culprit is an "h" in "DifferentialEnthalphy".
namespace Basilisk.Core
{
public enum EconomizerType
{
NoEconomizer,
DifferentialDryBulb,
DifferentialEnthalphy
}
}