MIght not be your issue, but Global settings are stored under the language chosen at the time of installation.
Eg if some clients have English US and some English international then they will not be able to see the same global. To fix either set the global setting for both languages or re-install all users on the same language.
**Any opinions expressed in this forum are my own personal opinion and should not be interpreted as an official statement on behalf of Micro Focus**
We have seen the same issue with Build 2017 in relation to the Language settings. We noticed that the Language settings would often change after activating the Integration with MS Outlook from within TRIM User Settings.
As part of our user config, we had users:
With all other apps closed, Turn on any desired Integrations
Open Outlook to ensure Integration
Open TRIM and adjust language back to true Global of English US