Hi Aaron,
More details please on commands used to insert the ECW. Did you check to see if it was on a frozen layer? What year/version Civil 3D are you using? Do you have all updates?
Dave
Dave Stoll
Las Vegas, Nevada
64GB DDR4 2400MHz ECC SoDIMM / 1TB SSD
NVIDIA Quadro P5000 16GB
Windows 10 Pro 64 / Civil 3D 2024