Thank you for the detailed feedback! I shared this already with the team.

This looks like an inference glitch that we are working on fixing, thank you for flagging.

There are many ways to do it, but the simplest approach is block diffusion: https://m-arriola.com/bd3lms/

There are also more advanced approaches, for example FlexMDM, which essentially predicts length of the "canvas" as it "paints tokens" on it.

Would love to hear about your experience. Send us an email.

Not imminently, but hard to predict where the field will go