Hi @Mateusz Pazdzior - we have a pr in the works that we hope will address this.
Just to make sure this isn't blocking you - you can switch back to the old parameters UI by going to feature previews and turning off 'Enhanced deployment parameters UI' (You can also toggle that from the custom run page but sounds like you have an issue with Quick Run?).
Bring your towel and join one of the fastest growing data communities. Welcome to our second-generation open source orchestration platform, a completely rethought approach to dataflow automation.