MR2 forgets APN

[derek42]

I have two different sim cards from different suppliers.  If I put one in and add the APN details it becomes active. When I change to the other sim I do the same.

When I return to the original sim the list below has vanished.

Do I have to enter the APN details each time I change sim?

Network selection is set to auto.

Many thanks.  

[TeeJay74]

Re-entering APN after sim change that's normal.