Edit: The one loco I downloaded as a test is faulty in TRS19 PE due to using engine sounds from 20 years ago.
Edit 2: Turns out the engine sound is faulty due to it using a non-existent KUID. Never seen that before. I assume it means the creator part of the kuid isn't a registered user of Trainz. When CM tries to convert the kuid number into a person's name it fails and flags it as faulty. Anyway the loco was ancient and not worth the trouble to fix so it deleted it.
Google did purge a lot of "inactive" users about a year ago. I got a message asking if I still used Google Drive and if I want to keep the space. I downloaded what little I had there and told them to delete my Google Drive account. I have 5 TB of space included in my Microsoft 365 subscription so I didn't need it.