I think I found the problem. I currently have Judy as a playermodel and found the bug you encountered. The updated Ragdoll Resizer tool seems to be causing this, as any change made to the eye scale of either of the two ragdolls via said tool seems to affect the eye scale of their respective playermodel counterparts too. If you happen to have the Ragdoll Resizer tool installed on Garry's Mod, you need to reset ragdoll Nick and Judy's eye scale to default with it, thus resetting the playermodels' eye scale to default as well. This worked for me, so it should also work for you.