I set the expression Mid([Project Nam...

[Chengzhi-EXT_GU]

I set the expression

Mid([Project Name], 5, 2)

to the value of column “Test”, when I filled the value “12345678” to [Project Name], the value of [Test] should be “56”, but in fact the value of [Test ] is “34”,

Can someone help to check?

MID(some-text, begin-at, how-many)