Hi @yankiara,
Thank you for bringing this to our attention!
As rightly pointed out by @hopscotch we added the base breakpoint with 1.4.0.3:
Kindly let me know if this is the case on your end.
Additionally, if you wish to move any styles between breakpoints, you can do so with the new Transfer / Exchange Breakpoints feature.
@hopscotch shared a great explanation of this here:
Rest assured, we’ll have dedicated documentation on this feature as soon as possible.