I have created a snippet code similar to what is used in the wildfire spirit. It was displayed briefly in the character sheet when I updated it originally but now all the information has vanished from the actions panel other than the limited use for its hit points.  I have waited for the site to update and it has been several hours. This happened on another of my subclasses and I had to remake it entirely and just copy and paste everything over then it worked fine. I don't want to have to make every subclass twice so if I could know what's going wrong that would be great.

<strong>Armor Class:</strong>{{proficiency+14}} (natural armor)
<strong>Saving Throws:</strong>
<em><strong>Scout</strong></em> Dex {{proficiency+2#signed}}, Wis {{proficiency+3#signed}}
<em><strong>Prowler</strong></em> Dex {{proficiency+3#signed}}, Wis {{proficiency+2#signed}}
<em><strong>Guardian</strong></em> Dex {{proficiency+2#signed}}, Con {{proficiency+3#signed}}, Wis {{proficiency+1#signed}}
<strong>Skills:</strong>
<em><strong>Scout</strong></em> Perception {{proficiency+3#signed}}, Survival {{proficiency+3#signed}}
<em><strong>Prowler</strong></em> Stealth {{proficiency+3}}, Acrobatics {{proficiency+3}}
<em><strong>Guardian</strong></em> Athletics {{proficiency+3}}

<em><strong>Bite.</strong> Melee Weapon Attack:</em> {{proficiency+3}} to hit, reach 5 ft., one target you can see. <em>Hit:</em> <strong>1d6</strong>{{proficiency#signed}} piercing damage.
<strong>Hit Points:</strong>


The snippet I'm using is listed above. This displays fine in any other subclass I have created but since I added the Hit Points at the bottom nothing displays any longer.

Can you give the url to the character sheet with this?

Try re-saving your subclass using the main [SAVE CHANGES] button under Basic Information, give it 20 minutes and then check again. If it’s still wonky try “waking up” your character sheet (General FAQ #6-B):
https://www.dndbeyond.com/forums/dungeons-dragons-discussion/homebrew-house-rules/131411-a-homebrewers-how-to-faq