I don't use True Key myself but reading the support pages in particular this one: https://help.truekey.com/hc/en-us/articles/212870658-How-do-I-sync-between-all-m y-devices-
Synching is automatic - perhaps it's simply a latency issue in the other devices catching up. Each device would need to be connected to the Cloud, i.e. the Internet to synch.
Please clarify whether you've used the same email address and Master Password for all the devices that you reference. Also let know which type of settings are not syncing to the other devices. Note that changes from a Trusted device will be synced first.
With regards to no time-out for Mobile devices - they are used by single person rather than multiple user profiles (as in PCs and Laptops).
Locking this discussion as there has been no feedback.