Saving "System Properties -> Basic Configuration UI16" causes "glide.sys.default.tz" to change to "?" (question mark) - Support and Troubleshooting

Saving "System Properties -> Basic Configuration UI16" causes "glide.sys.default.tz" to change to "?" (question mark) Issue  Symptoms When admin user sets the value of the system property "glide.sys.default.tz" to a new timezone value like "Europe/Helsinki", And then navigate to "System Properties -> Basic Configuration UI16", clicking on "Save" configuration button causes "glide.sys.default.tz" property value to "?" as shown in the below screenshot,

Release Any Supported release.

Cause The user was trying to set a time zone configuration on the "glide.sys.default.tz" property (which doesn't exist on the available timezone) and hence after setting the property when user navigates to "System Properties -> Basic Configuration UI16", system shows empty selected value in the timezone dropdown.

Thus when user clicks on "Save" button on the configuration form, the system saves the value to "?" in the "glide.sys.default.tz" property.

Resolution Before setting a new timezone in the "System Properties -> Basic Configuration UI16" configuration form, Click on "Configure Available Timezones" and add the timezone as shown in the below screenshot,

Then set the newly added timezone either via configuration form UI or via "glide.sys.default.tz" property.

Additional Information Time zones