Two problems with using Mixpanel

Hello. I have two problems related to work with Mixpanel.

The first one:
When I use function call at page opening - then event comes out incorrectly and has extremely inconvenient name among events on Mixpanel site itself.

const analytics = Analytics({
app: 'Test',
plugins: [
mixpanelPlugin({
token: 'test',
}),
googleAnalytics({
measurementIds: ['G-TEST'],
})
]
})

analytics.page({
url: pageUrl,
});

Second:
When I add information to a user, I see the name as a built-in parameter, but the email address is passed as custom and initially I don't see it in the table in the list of users. But I can see it inside properties of the user if I open full information. I don't have this problem with the name.

analytics.identify('testID', {
email: email,
name: name,
})

Start by reproducing both reports with the provided Analytics configuration, the Mixpanel plugin, analytics.page, and analytics.identify calls. Compare the resulting Mixpanel event name and user-property presentation with the reported behavior; done means both page events and email properties appear as intended in Mixpanel.