Are these flavours all in the flavour group? Remembering that there are 5 groups: sweet; sour;
salt; bitter; and "umami" (a savoury-like taste). What tends to happen if you
vape flavours from the same group you tongue becomes muted to those flavours. A common fix for
vaping tongue is to switch flavours to another group or try something minty.
Alternatively you might have dmaaged the taste buds (i.e. burning yourself on hot coffee/tea). In such cases it will be about 2 weeks before your taste returns fully.