Volume keyframe set to -∞ when importing OMF

Hello community!

Im having this problem when I open in Audition the OMF created on Premiere.

I've set the clips on green so you can see whats happening. Those clips was originally being played normally on Premiere. They were not muted or had the volume set to low. I dont know why but when I import the OMF the volume keyframes are set to -∞ ! Sometimes it happens with isolated clips, sometimes with the entire track. Since is very annoying setting all keyframes back to zero clip by clip, I have 2 questions:

1) Why is this happening? There is some way to avoid this to happen?

2) There is some way to set all clips keyframes set to zero at once? (I saw some post saying about export a XML and import it again and actually it worked, but i noticed all clips moved a bit, wich would give me another work to set them all back to the right place to keep the sync. So thats not an option to me.)

Thank you very much for the attention and hope someone can help me.

Hugs!