When retrieving materials from the Island Expeditions, if the Isleventory is full, an error message will be displayed, depending on whether the Isleventory is completely full or if there is some room left.

In most cases, the error message will consist of "you are unable to obtain X", however when there is room remaining to acquire some of the attained material before reaching full, it appears as if there was the intent to denote this (pictured below)

Picture

As displayed, however, there is an issue with the way that the numbers are set out. As can be seen at the top of the screenshot, the number of attained Island Stones is 4. However, at the bottom of the screenshot, the error message notes that of a possible 2, 6 stones were obtained.

The correct error message should state that of a possible 6, 4 were obtained, or perhaps even that of a possible 6, 2 were lost.