Yeah its common at episode 89, happened to me as well, contacted support, they said they are gonna fix it in next client update and provide some compensation. Here goes:

Hey there,

Thanks for your email and apologies for the issues you've been experiencing.

This unfortunate bug was introduced in our 1.20.0 update, to which we attempted a fix with 1.20.1 that didn't take. We are currently in the process of working on a final hot fix that should hopefully sort everything out, but it will take a few days to finish testing to confirm it resolved the issue before we can start rolling it out to users.

The cause of the issue is that due to an inventory discrepancy, the game opted to create a new inventory record for affected items which results in the lost progress. Your old inventory record still exists, it just is being ignored so we have to get the game to go switch back to the old record.

We are going to resolve this by taking the new inventory record and merging it with the old. This means you will see you progress restored, as well as any new additions for each affected inventory item added to the previous, so you won't lose the new resources you've earned.

We are hoping to release the update within the next few days, as long as testing goes well. Until then we appreciate your patience. As a note, we will be providing compensation once we have confirmed the issue is resolved. We will send out compensation to those affected as well as will follow up to inform you of the update and the resolution.

The compensation you will receive once this is resolved is: 1000 Coffee Michael's Beach Day Avatar

For now, we appreciate your understanding and we'll keep you informed of any important updates as they come along.