Message 3999

TUFLOW FV

Available since version: 2026.2.0

ERROR 3999 - Internal FVC error while selecting hardware option (<hardware_option_value>)

Description

An unrecognised return code was received from the GPU solver while selecting the hardware option. The return code is shown in the message.

Suggestions

This message indicates an internal consistency error that should not occur under normal conditions. Contact support@tuflow.com and please provide the model log file. This will assist in diagnosing the issue.