[Bug] [iOS] Label with FormattedText Crash on XF 5.0.1.1876

[xDaijobu]

Description

if I use Label without FormattedText the app work and Label with FormattedText, I received above crash

Steps to Reproduce

Create a new project & upgrade to XF 5.0.1.1876

    <Label>
        <Label.FormattedText>
            <FormattedString>
                <Span Text="25min" />
                <Span Text=" . " />
                <Span Text="Free delivery" />
            </FormattedString>
        </Label.FormattedText>
    </Label>

Expected Behavior

Xamarin.Forms 5.0.0.1931

Actual Behavior

Xamarin.Forms 5.0.1.1876

Basic Information

• Version with issue: Xamarin.Forms 5.0.1.1876
• Last known good version: Xamarin.Forms 5.0.0.1931
• NuGet Packages:
• Affected Devices:

[rachelkang]

Hi, @xDaijobu - thanks for submitting this issue. Would you mind clarifying what version of XF you're experiencing this issue? 5.0.0.1931 is our most recent version, so I'm not sure what you mean by 5.0.1.1876.

That being said, I tried running your sample on both 5.0.0.1874 and 5.0.0.1931 on the same emulator as you (iPhone 12 iOS 14.4) and was not able to reproduce this issue.

[xDaijobu]

Hey Rachel, thanks for ur reply.
here's the repo
testt.zip

Xamarin.Forms 5.0.1.1876

[xDaijobu]

update ?

[xDaijobu]

Related #12259
Related #13526

I tested the latest nightly and the issue no longer happens.