vebus dbus /Connected goes false (0) when device is still connected

[kwindrem]

When switching inverter modes, the dbus parameter /Connected for the VE.Bus device sometimes goes to zero (false). This causes systemcalc to null out /VebusService (and probably other side effects). Anything testing /Connected will behave as if the inverter is not connected even when it is present and can be controlled (eg by the vebus services's /Mode parameter).

This is more like to occur when switching the inverter off (/Mode = 4) but does occur at other times.

When in this mode, writing 2 (inverting) or 3 (on) to /Mode will usually update /Connected to true (1).

I have tested this on v3.50~25 and also v3.42. My Multi Compact was at v508 but had the same problem after upgrading to v552.