Loop devices are not removed after the creation of SolusVM KVM VPS with thin provisioninig enabled:
# losetup -a
/dev/loop0: :100 (/vmdata/kvm101.img (deleted))
/dev/loop1: :101 (/vmdata/kvm102.img (deleted))
This was confirmed as a product defect with ID SVM-3143 which is planned to be fixed in future product updates.
As a workaround - remove loop devices manually:
Access SolusVM KVM node via SSH.
Remove all mappings:
# kpartx -d /vmdata/kvm101.img
# kpartx -d /vmdata/kvm102.img