Listbox position offset into tabpanel on Linux

I tried a clean project and it works

but on an old project, i’m trying to figure out what provoke that

the listbox is in a tabpanel
the tabpanel is in a container
the container into a window

if i use the listbox out the tabpanel, it works fine in the old projet

Ubuntu 22.04
Xojo 2024r3

any ideas ?