Between update 4 and 8 we slightly changed the behavior of solver with OOC mode.
In the case if PARDISO run in OOC mode then two-level factorization algorithm is not supported ( see note into documentation)
In your case you choose hybrid mode but for your inputs, the available RAM is not sufficient, therefore PARISO automatically switch to OOC mode.
- Increase RAM or
- Change parallel factorization algorithm as default for example