After installing the Portal for ArcGIS 11.1 Enterprise Sites Security Patch A or B, any requests to create content will fail for the standby machine in a highly available Portal for ArcGIS environment.
The 10.8.1 and 10.9.1 versions of the ArcGIS Enterprise Sites Security Patch do not cause this problem.
The file with the database connection information on the standby machine in a highly available environment has been overwritten and thus reverted to default settings, and the loss of the configured values results in failures on the standby machine.
Uninstalling the patch will not resolve the problem. Instead, follow these steps to ensure the correct values are re-applied to the affected file.
Esri released a corrected version of the Portal for ArcGIS 11.1 Enterprise Sites Security Patch as of December 12, 2023. The corrected version is identified with a "C" version suffix. This corrected patch ensures new installations do not encounter the bug described in this article. For those who had already installed the Portal for ArcGIS 11.1 Enterprise Sites Security Patch A or B, the correct patch cannot resolve the bug. Instead refer to the steps in this article for a resolution.