Update to v9 leads to 500 errors

[lowbits]

After upgrading my nestjs to v9 im getting following error

BadRequestException: Bad Request Exception
    at ValidationPipe.exceptionFactory (/Users/git/nestjs-better-validation/node_modules/@nestjs/common/pipes/validation.pipe.js:90:20)
    at ValidationPipe.transform (/Users/git/nestjs-better-validation/node_modules/@nestjs/common/pipes/validation.pipe.js:66:30)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at resolveParamValue (/Users/service/node_modules/@nestjs/core/router/router-execution-context.js:147:23)
    at async Promise.all (index 0)
    at pipesFn (/Usersservice/node_modules/@nestjs/core/router/router-execution-context.js:150:13)
    at /Users/service/node_modules/@nestjs/core/router/router-execution-context.js:37:30

Tried to find the error by myself but im to unkown in nest.
When i downgrade to v8 everything is working again.