Errors and failure with big file upload to B2

Suspected Bug
6

The following also reproduces the multiple upload bug on a 1 Gbit server. Server is a fresh Hetzner "cloud" Ubuntu 22 host.

sudo -v ; curl https://rclone.org/install.sh | sudo bash

apt-get update && apt-get install nload

dd if=/dev/urandom of=test1.bin bs=1G count=1
# dd if=/dev/urandom of=test60.bin bs=1G count=60

export RCLONE_CONFIG_X_TYPE=b2
export RCLONE_CONFIG_X_ACCOUNT=aaa
export RCLONE_CONFIG_X_KEY=bbb

rclone \
    -vv \
    --multi-thread-streams=32 \
    --stats=10s \
    copyto test1.bin x:bucket/dest1.bin