Saiedmomen
03/21/2022, 12:25 PMThe call to composer.start has a group with the key 456. Thecompilersees that the group in the slot table of 123 doesn’t match, so now it knows that the UI has changed in structure.
Thecompilerthen moves the gap to the current cursor position and extends the gap across the UI that was there, effectively getting rid of it.