ok, i had (obviously) completely missed that setting,
I was just going by the permissions tab, and that's where it got confusing.

• You may use shorthand byte values: K (Kilo), M (Mega).
1K = 1,024 Bytes
1M = 1,048,576 Bytes
• You may use decimal places such as 0.5M, to specify half of a MegaByte.
• Do not use commas.

so I need to enter 1M there, not 1048675 ?

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