Character missing from <Text> component

[BigSillyTiger]

Hi, I am using Text to display strings like below, but I realized that if the string contains blank space, then the displayed result will lose characters from the end of the string, for example:

<Text style={{ ...fontStyles.normal }}>
    {t("label.break") +
        ": " +
        log.b_time +
        "h"}
</Text>

the string contains one blank space, then the h from the end of this string will not be displayed. the number of missing characters is associated with the number of blank space.
In order to display the result I want, I have to manually add useless characters at the end of the original string. Is there anything I am missing or this is a stale bug?