Hi,
Are you sure you’re not setting it somewhere?
This prints the right thing for me:
import torch
from torch import nn

a = nn.BatchNorm2d(10, eps=1e-3)
b = nn.BatchNorm2d(10)

print(a.eps)
print(b.eps)

inp = torch.rand(2, 10, 3, 3)

a(inp)
b(inp)

print(a.eps)
print(b.eps)