Realm won’t save progress

Semi-recently I update my Minecraft to 1.13 and got on my realm to look for foxes, I got on with a friend and looked around and logged off, then my progress had been undone, I kept doing things and when I logged off they would be reverted, the issue has been happening since 1.11 but has gotten way worse from maybe a 1% chance of happening to a 70% chance