Error 400 when trying to open a subworkflow

[Delphine-L]

Describe the bug
Hi! I get this error 400 sometimes when I try to open a subworkflow on main. Most of the times, if I reload the parent workflow is works, sometimes it takes several tries to work. Doesn't happen with one workflow in particular so it's hard to reproduce.

Galaxy Version and/or server at which you observed the bug
Galaxy Version: main 24.1.3.dev0

Browser and Operating System
Operating System: macOS
Browser: Chrome

Screenshots