It could be that you modified the data type yourself and with the SPAU it is now reset to the standard and again without proper labels.
check in SE11, enter your AFS_SIZE into the data type field, move the radio button as well to that field, then click display and goto the lfield label tab.
Are there all 4 field labels defined in your language?
if not check via Menu Utilities > Versions if you got a new version with the upgrade.