Hello Nick B -
I completed the full diagnostic you requested using a brand‑new LocalWP site (testblanksite) that was not imported from anywhere and just created by LocalWP. My results are as follows:
1) Added 5 images to Media Library
Result:
Images successfully appeared in the imported site.
2) Created a new Page
While creating the page, something unexpected happened:
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When I clicked Pages → Add New, a Starter Templates popup appeared — the same template plugin that exists on my main site (parrotsforsale.local).
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This blank test site has zero plugins installed, which I confirmed on the Plugins screen.
I am attaching two screenshots showing:
Result:
Test Page appeared in the imported site.
Starter Template Popup:
No Plugins, yet Starter Templates popped up when adding a Page.
3) Created a new Post
Result:
Test Post appeared in the imported site.
4) Changed Homepage settings
Settings → Reading:
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Homepage = Test Page
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Posts Page = Sample Page
Result:
Homepage settings carried over correctly.
5) Installed a small plugin (“Disable Comments”)
Result:
Plugin was still installed and active after import.
6) Added a Navigation block to the Test Page
Result:
Navigation block and its links were preserved.
Summary of Findings
All six test items did carry over correctly in the export/import of a brand‑new blank site.
However, the cross‑site contamination is extremely concerning:
A blank site with zero plugins showed Starter Templates from another site.
This should not happen and suggests that something in the LocalWP environment is not isolating sites correctly.
Additionally, when I tried adding a page on the imported blank site (testblanksite-staging), the Starter Templates popup appeared again, even though the only plugin installed was “Disable Comments.”
Concerns with the Blank Site
Even though the blank site exported correctly, the fact that it displayed templates from another site indicates a deeper issue affecting site isolation. This may be related to the original symptoms:
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All development after April 19 missing from exports
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Imported sites stuck on older database snapshots
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Taxonomies and Listing Types becoming corrupted
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Images and settings after 4/19 not appearing in exports
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Unexpected UI elements appearing on unrelated sites
At this point, I cannot safely use LocalWP for development until this is resolved.
I also need to be able to use my original site that seems corrupted. There has been many months of development there.
I’m also attaching logs from:
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Site A (parrotsforsale.local) - Original Site, export only.
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Site B (parrotsforsale-staging.local) - Imported from Site A.
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Testblanksite (the new blank site) - including because of the Starter Template issue.
These three logs show the behavior across all environments.
UPDATE: I see that the log files are not per each site. So I’m just zipping them all and attaching for you.
Thanks, Nick B for looking into this for me 
local-lightning-logs-zipped-parrotsforsale-4-30-26.zip (587.6 KB)