Anyone else seen a massive increase in disk-space used by VBR-catalog on the VBR-server after upgrade from 12 to 13? I´ve had multiple upgrades, but the latest one I´ve done with a customer. it has eaten up 20% more disk-space after just 2 days on v13. Is this to be expected? and if so when will the increase stop?

We had a 100GB partition dedicated for this vbr-catalog, which had more than 20Gb free before the upgrade, now I had to increase the disk to 160, and the catalog has grown to 110GB
Update: but after one more run of the jobs, space-used have decreased to about 60GB again