Robust Optimization problems stop suddenly

I am sorry about the inconsistency you have encountered in the IVE stats.

It appears from the logs that at least the solution to your problem is indeed optimal and correctly picked up.

Please note that Xpress IVE has been deprecated since Xpress Release 8.3. The binaries are still included in release builds for backwards compatibility, but it is strongly recommended to switch to using Workbench as development environment for Xpress Mosel.

Due to its deprecation, some of the newer Mosel modules such as mmrobust may not be fully supported in IVE.