Created a custom InlineParser but it seems other parsers are not processing

I'm in the process of writing a custom parser and renderer for custom Alert blocks and I sort of have it working using InlineParser and HtmlObjectRenderer.

But when I have my extension added to the pipeline it seems other parsers are not running or rather some parsers are not running.

In my resulting HTML I do get < p >s everywhere but If I add a strong to my alert text it does not get the tags. If I do not add my extension to the pipeline I do get a tag on my HTML.

<p>Tip|This is a tip alert and this text should be <strong>strong</strong> however it is not if my extension is loaded</p>

<p><div class="alert alert-success" role="alert">
    <p class="alert-title">
        <strong>
            <i class="bi bi-lightbulb"></i>
            Tip
        </strong>
    </p>
        <p class="mb-0">This is a tip alert and this text should be **strong** however it is not if my extension is loaded</p>
</div></p>

Start by reproducing the reported syntax with the custom InlineParser and HtmlObjectRenderer enabled in the pipeline, then compare the generated HTML with the extension disabled. Trace how the alert content is passed through the pipeline and determine what makes inline strong parsing run; done means the alert text renders strong as strong while the alert markup remains intact.