Following the tutorial, If I follow these steps
- create pool
- make pool bigger (after this it still has the same original size)
- add swimlanes
-> this is what i get. Saving, closing and reopening will fix the layout.
What are your cuba version, BProc version, OS and what browser do you use (name and version)? Does it work in another browser? If not, then could you please create a video (animated gif) that represents the problem and see if there are any errors in the browser java-script console.