Issue: the date picker is literally translated from English. M | T | W | T | F | S | S. Chinese Traditional is translated correctly (i.e. M = letter M or T = letter T); however, this is not localised; so users in Taiwan do not recognise what the letters M | T | W | T | F | S | S refer to in their local language Chinese Traditional other than the literal letters.
Solution: translate the date picker so the abbreviated days apply to the local market, or don't translate them.
