Custom Thumbnails on Main blog not Working

Hello,

The custom thumbnails I set up on my main networked blog are not working for two recent posts. It’s really weird, and I can’t figure out how to fix it, although I’ve narrowed the issue down to the WP-Sitewide tags plug-in (thumbnails resize correctly if I deactivate SWT).

Example here: sidebar under Latest Posts – all thumbnails should be small, not the default 150×150
https://jumpthedock.com/blog/category/health/

For these two posts, I’ve tried several times to delete and re-add the featured images, then republished the posts to the main blog, hoping that the custom-thumb resizing would stick now, but to no avail. The thumbnails on all custom-thumb areas of my main blog, for these two posts only, remain at 150×150.

I published these two posts during the small window of time after WP was updated to 3.1.3 but before the fix was created for SWT posting multiple blog posts every time a sub-blog was updated. I don’t know if that has anything to do with this, but that’s the only thing I can think of that I’ve changed/updated.

I also published a Test post just now, and the featured image/thumbnail of the Test post resizes correctly on the main blog.

I’m at a loss. Ideas please! Thanks! ??