I’m fairly certain the issue is a permissions issue on your local install. One which I don’t think I’ll can help with. I also think when moving you local to the intranet, the issue will resolve. I do have a plan b which will work.
Go to the Connections : Settings admin page and change the Medium Image size under the Images tab to the size you need them to be. The default for Tile Plus is 100w x 130h px.
Now, update you shortcode on the page where you inserted the Connections shortcode to include the
You should end up with something like this:
[connections image_width=0 image_height=0]
This will force Tile Plus to use the pre-cached images instead of them being created dynamically.
The downside it any images that you’ve already uploaded will have to be re-upload for the changed image size to take affect.
Let me know if that resolves it for you.