Thanks Kets,
I suggest you to try to recompute the recalulation for this asset. This can be done via Values Tab. You'll see the Values button and the Recalculate Adjustment option.
This feature recalculates the depreciation amouts based on asset's master data. After that, click on a different valaution view or change the display year to refresh the screen and then check the Depreciation amounts again. In case there were changes, click Save.
You can also have a look at the Depreciation report under Fixed Assets -> List.
Run the report with the view "Planned Vs. Posted" for this single asset and via Add Fields you can add the Accounting Periods characteristic.
Regards,
Alexandre.