I'm aware of what they should look like, and mine originally did as well. I must have made some change without being aware and it was only when I uploaded to server that I caught it.
However, the carousel does not now behave as the default example does. On my test site, all should be defaulted, as I've made no changes to the original bootstrap css, and my custom bootstrap external file changes are commented out.
Therefore, I would assume it should appear as it once did. My massaging of the custom css was only an attempt to return to that default.
Is my logic faulty in this assessment?
Thank you for your time. The keyword being default, I just generated a new carousel and all scripting, and all is well again.
I remain curious as to what caused the problem, but NOT so curious as to spend another minute on it.