'Gtk4 PyGobject: Trying to snapshot GtkBox without a current allocation

I am developing an app with GTK4 + Python3 and I get this message:

Trying to snapshot GtkBox 0x5594bdcaa310 without a current allocation

It happens when I load a long list of ListBoxItems with an image in each of them. Seems kinda random, and only some of the elements throw a warning.

Sometimes the whole window even freezes, but a resizing it is enough to "unlock it"

Have you have encountered this issue? Thanks

linuxgtkgnomepygobjectgtk4


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