I suspect that whichever delimiter your file is using, that character appeared in one of the values in that row, causing items to shift columns?
For instance, maybe the file is "tab" delimited.. so each tab indicates a new column, but maybe you had a value in a field like eVar1 = "something \t value" (\t being a tab)... so "something" ended up in eVar1 and "value" ended up in eVar2, the value of eVar3 was pushed to eVar4, etc....