&parents=`[[*id]]` should definitely not display resources at the same level as the current resource.
Are you sure, you're on the correct resource?
I'm with sashame. I can't imagine any way this could happen unless:
1. You're confused about the structure of the Resoure tree
2. You have a template variable called 'id'
3. You have a plugin that's messing with the page IDs. I think there's a sibling plugin that could be doing it.
Assuming that it's not one of those:
First, try deleting all files in the core/cache directory and clearing your browser cache and cookies.
If that doesn't work, I'd try disabling all plugins by right-clicking on them and selecting "disable plugin". Then delete the cache files again.
If you're still seeing it, uninstall, remove, re-download, and re-install getResources, then delete the files in the core/cache directory before testing.
