ESS SW bug - feed-in disabled, but system sends a power to the grid

In my one phase victron system (Multiplus II and Fronius on the AC IN)

I have a feed in disabled:

But when there is any consumption on the other phases where isn’t victron system istalled, feed in will start :

It must be a SW bug, because normaly victron must work only with L1 phase where is installed.

I did new test with EVCS off :

It must be a SW bug, because ESS is trying to get a grid sum (L1,L2,L3) to 0, not only L1 as configured.

Today I did next tests and it must be a ESS Bug.

When on the L3 starts consumption, ESS will increase power of PV Inverter and this power comes to L1 where complete victron system is installed.

When power from L3 disappear, will decrease a PV Inverter power to reach no feed-in situation on the L1.

So my setup for ESS is single phase, but ESS still count all phases together.

How to solve it ? I really need a single phase (L1) system.

Any Idea ? SW BUG ?
Victron staff - any idea ?

Thank you

Alex