Since TrueNAS master build 202006151656 and upto the latest version today(also beta1), iSCSI seems broken. Windows reports the disk bad and data is courppted when transfered to the disk. This is both when using volume and file.
When testing the system with a build before this date 20200616, it works again and no coruption - Everytime created again freshly.
Windows reports the disk bad.
Not able to format the disk as GPT( reports the wrong disk size )
Info about system:
Brand new installation with ZFS encryption enabled