Invisible Rail Stock

Interesting situation.
I'm running Trainz 2019 100240 North American Edition and within the last few days, I've completely lost sight of all locomotives and rolling stock in the simulation.
They are there, as the map shows the consists and the the directional arrows in Surveyor are showing but no visible sign of the trains.
This is happening in both built-in routes and home made routes. It is happening in both Surveyor and Driver.
I'm not sure what is happening. Anybody have any ideas?
The only clue may be that I have Disabled a few builtin train cars and locos that I did not want clogging up my pick list.
In two words, "Please help!"

Claude

Claude,

Have you done a database repair?

Are there any assets open for editing?

Missing dependencies?

You might have inadvertently 'borked' something by disabling the built-in assets.

I have performed a couple of repairs, especially after Disabling the rolling stock, there are no open for edit assets and only few missing dependencies on rail cars I have Disabled.
I'm tired of fighting with Trainz and will attempt a complete re-install.
If that doesn't work, I'm going back to Flight Sim.
Thanks for assistance, J.

Did you try re-enableing what you disabled to see if that clears it?

Working on it. Thanks Alikiwi.