Modification time of directories for exfat

I am using an exfat formatted external harddrive connected to a RPi2 running OSMC RC1. I noticed Kodi sometimes doesn’t scrape series properly. After some investigation it turns out to be because the folders where the serie is located in does not update its modification time when I move a file in there. In general, the following:

mkdir test && stat test && touch test2 && sleep 2 && mv test2 test/ && stat test

I expect it to give two different modification times there, which it doesn’t on the exfat drive. On the microSD card (ext4) I do see the expected result, but not on the exfat drive. This is the line from mount:

/dev/sda1 on /media/3TB type fuseblk (rw,nosuid,nodev,relatime,user_id=0,group_id=0,allow_other,blksize=4096)

In addition, if I create a file in the folder on the exfat drive, the modification time does update, so it is just when moving a file. Any idea what is causing this?