APEX doesn't work on character with scale

Hi everyone,
I’ve got a problem with the APEX clothing and have no idea what’s going on.
I hope some of you take a short time to help me with that issue.

I’ve created a clothing for a towel, but it doesn’t work on the left character.

The only difference between these two characters is, the left one is scaled by -1 and a little offset

This is how the clothing is applied: