If you compare the "weaknesses" property between these two requests, you can see that "expand=types" causes all the weaknesses to be the value "1" - https://temtem-api.mael.tech/api/temtems?weaknesses=true - https://temtem-api.mael.tech/api/temtems?weaknesses=true&expand=types
If you compare the "weaknesses" property between these two requests, you can see that "expand=types" causes all the weaknesses to be the value "1"