When trying to apply Avatar Proportion to a G6 character, a warning is displayed, related to FBX export.

See: G6_avatar_proportion_warning.jpg

In addition, there are number of issues with the scaled character.

1. Any pose applied to the character is lost, instead it ends up in a T-pose.
2. The hair does not properly confirm to a new head size.
3. Eyes and teeth are misaligned.

See: G6_avatar_proportion_result.jpg

NOTE: Avatar proportion works for G5 and earlier characters.

The issue is easily reproduced:

1. Load Heidi.
2. With Heidi selected, click Avatar Proportion.
3. Set Body scale to 50% for X, Y, and Z.
4. Exit the dialog.

The result will be as shown in the screen shot.