Sorting first column not working, sorting column 2 and 3 does (same code)

Below is three macros, sorting column 1, 2 and 3.
The interval is defined by the strings StartRow and EndRow that are hidden in the sheet.

When running macro SortColumn2 and SortColumn3 sorting works fine.
But when running SortColumn1 it messes up and Endrow unhides, moving to the top before StartRow.

What is wrong with SortColumn1?

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Working code:

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the problem was because "EndRow" is in column A, and your addresses were wrong
see what goes on with your version displaying debugging info

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