Hi
In General, if you open an SR and you feel it's going nowhere, you can ask for R&D involvement (Task)
After Briefly looking into it (we are still looking) we found that the memory reserved for some processes was increased (double) than in previous build. it's not a real issue as the memory is just reserved not allocated, and can be freed if needed. it does however change the amount of memory presented as "Free".
This will explain part of the "lost memory" you see.
TAC remark are only relevant in cases Sizing is a problem. many many host and concurrent connection.
If you feel this is not the case, and TAC answers and not satisficing, please contact us.
thanks