I am sorry that this is still an issue.
It seems that AX Metrohm Group statement shows a wrong profit in Balance Sheet. Surely it must be the same like in PL annual profit. Please ask Global IT to help you fixing the report on Group Layer side.
The new lifetime-periods for fixed assets are valid only for new fixed assets purchased since 2015. No recalculating of existing older ones is needed.
The difference of your fixed asset depreciation is caused by the different fixed asset (BLD) settings. Please check depreciation periods on CUR and GRP.