Cloudinary works fine for me except on a OnePlus 5T device. I get upload onProgress() callbacks upto 100% and then I get a onError() callback with this on logs:

EOFException in RealBufferedSource.readUtf8LineStrict()

Details:
SDK v1.26.0,
AndroidX enabled,
uploading video ~20MB,
compileSdkVersion 28,
sourceCompatibility JavaVersion.VERSION_1_8,
targetCompatibility JavaVersion.VERSION_1_8.

I couldn't find anything related to this online. Please look into this soon.