Hi @cutout
I don’t think you have yet explained what type of field is ‘homepage_slide’.
Am I right in assuming it is a gallery or repeater field?
If so, the value will not be ‘1’.
Perhaps you will need to use some of WP COMPARE query args to look for EXISTS or event ‘> 1’
You may even find that removing the value param will allow WP to just find connections but not compare the actual value
Good luck
Thanks
E