Callback upgrades fail due to protected font files
| Issue date | August 14, 2017 | |
| Observed behavior | Upgrades of Callback to a version containing license enhancements cause failure of the upgrade due to license user interface fonts that cannot be overwritten. For reference, the licensing interface was introduced in version 8.3.0 and enhanced in versions 8.5.0 and 8.6.2 | |
| Products and versions affected | VHT Callback versions 8.3.0-8.8.5 | |
| Components affected | All components using licensing | |
| Applications affected | All applications using liensing | |
| Severity | Major | |
| Root cause | The upgrade process, to versions 8.3.0 or later, attempts to overwrite and register license user interface fonts that are protected (cannot be changed) and fais. | |
| Resolution | The upgrade process will be enhanced to skip the copying and registering of font files that already exist. | |
| Expected availability | Callback 8.8.6 | |
| Workarounds | To make license fonts accessible (unprotected), perform the following steps before executing the upgrade process:
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| Defects related to this issue | 150021692 | Upgrade issues with font files. |
