Differential pair routing skew not working

Hi, I’m trying to route a differential pair signal from my USB connector to my microcontroller through an ESD protection diode. But for some reason, when I tried to use the “Tune Differential Pair Skew/Phase” to match the length of my differential pair, no skew or a curve pops up when I tried to move my cursor along the trace. And I’m trying to add skew before and after the ESD protection diode.
Can anyone help me with this? Thank you.

Check and play with the skew meander settings. It could be they are set to course and adding a single meander increases the length more than the current offset. It could also be too course or fine for your current DRC settings, so it doesn’t create the meander due to violating the DRC.

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