Doesn't look like this one has been reported (apologies if I've missed it) so I thought I should, just in case.
The SDK documentation (https://docs.flightsimulator.com/html/Programming_Tools/Event_IDs/Aircraft_Misc_Events.htm) lists PRESSURIZATION_PRESSURE_DUMP_SWTICH as an event id. However, the value needed to map to the sim event is "PRESSURIZATION_PRESSURE_DUMP_SWITCH" (with the correct spelling of switch.)
I'm not sure if this is just a typo in the docs, or whether the enum/constant itself is named incorrectly in the SDK. As I don't use the official SDK, maybe someone else could verify that bit?
All the best.