Plugin Fails To Load In Creative Cloud Dashboard

Mac: OSX 10.15.7

I have created a plugin which is to be installed locally and does not require submission to Adobe for authentication.

I have packaged the plugin and saved it to a folder called +++UXP in my Downloads Folder
When trying to install, I get the following Error

How I Fixed This
It turns out that if I remove the +++ from the folder name, it works fine.
So it appears that having +++ part of the folder name is causing the issue.

I usually put +++ in the folder name so they appear at the top of the list when sorted by name.

Is this a Bug in the way that CCD install plugins?

Might use _?

Not sure why +'s fail, but they and a few others (#, and &) also do.