The source image could not be decoded

Before version 1.82, 3DTitle can be loaded, but starting from version 1.83, an error is reported. How can this issue be resolved?
A 3D tile failed to load。 Error: Failed to load image:http://xxxxx.b3dm, The source image could not be decoded.

The change log for 1.83 says

  • Dropped support for KTX1 and Crunch textures; use the ktx2ktx2 converter tool to update existing KTX1 files.

which sounds like it could explain the issue. Do you happen to know which texture format the B3DM files contain?