Hi,
the basic reason is that melt does not reach the node where you want to inject gas.
Gas is injected in cavity with no effect on melt.
After switchover, the melt has not reached the node where you want to inject gas:
the packing is 0 time and 0 pressure, so what you see is melt decompression, which makes time long.
And the decompression of melt does not reach gas injection node, resulting in the error.
The recommendations from DimitirV is a good starting point, and still valid for what you see.
What I suggest is in that direction too:
Make sure that melt will reach the gas injection node either in filling phase, or a packing phase,
by moving gas inlet or injection location or change process settings.
So to get some initial results, fill the cavity, switchover automatically, and pack until cavity is filled.
The gas delay time is the time from velocity/pressure switch-over to when injection of gas into the mold begins.
If you want to inject the gas to be immediately at the time of velocity/pressure switch-over,
enter a delay time of zero.
Regards,
Berndt
Berndt Nordh