Depreciation area in foreign currency - translation logic

Hi Experts,

I have found a strange logic during my settings.

In ob22, my company has for currency type:

10:eur, 30: usd, 40:gbp

Hence I created copy of depreciation 01 in eur depreciation area 30 which is an exact copy of 01 in USD and 40 in GBP.

When analyzing postings, translation from 01 to 30 is based on exchange rate type M EUR/USD => No issue

But translation of 40 is based on GBP/USD rate instead of EUR/GBP rate. Is it a normal way of working here?

I would have expected as 40 is an exact copy of 01, to get a translation logic based on 01. EUR/GBP would have made much more sense here.

Thank you for your inputs guys.