Error when Xee attempts to cast image data to an expected dtype

[KMarkert]

In some rare cases the data extraction process from EE to local ends up with an error: ValueError: When changing to a smaller dtype, its size must be a divisor of the size of original dtype. It is not clear to me why this occurs but obviously something is going on between the return dtype from EE and the expected dtype from xee.

This issue was introduced by #113.

More investigation is need to work on a reproducible example that demonstrates why this occurs and provide a fix.