[Bug]: frame5() not handling UTF-8 emojis in certain situations which work in chat and frame

[Baaaaaz]

Describe the Bug

UTF-8 emojis do not display correctly in frame5 in certain situations when they do in chat and frame.

Specifically I was trying to convert some markdown which contain emojis to html, and the converted emoji is displaying as ������. Further investigation shows frame5 does not display UTF-8 emojis in other situations either.

To Reproduce

1. Create a new macro
2. Paste and run the MT script below

<table>
	<tr><th>Case</th>						<th>Value</th>							<th>markdownToHtml</th></tr>
	<tr><td>0. raw</td>						<td>🔒</td>								<td></td></tr>
	<tr><td>1. quoted</td>					<td>"🔒"</td>							<td>[r: markdownToHtml("🔒")]</td></tr>
	<tr><td>2. entity code</td>				<td>&#128274;</td>						<td>[r: markdownToHtml("&#128274;")]</td></tr>
	<tr><td>3. quoted variable</td>			<td>[r: key = "🔒"]</td>					<td>[r: markdownToHtml(key)]</td></tr>
	<tr><td>4. entity code variable</td>	<td>[r: htmlKey = "&#128274;"]</td>		<td>[r: markdownToHtml(htmlKey)]</td></tr>
</table>

[frame("FRAME"): {
<table>
	<tr><th>Case</th>						<th>Value</th>							<th>markdownToHtml</th></tr>
	<tr><td>0. raw</td>						<td>🔒</td>								<td></td></tr>
	<tr><td>1. quoted</td>					<td>"🔒"</td>							<td>[r: markdownToHtml("🔒")]</td></tr>
	<tr><td>2. entity code</td>				<td>&#128274;</td>						<td>[r: markdownToHtml("&#128274;")]</td></tr>
	<tr><td>3. quoted variable</td>			<td>[r: key = "🔒"]</td>					<td>[r: markdownToHtml(key)]</td></tr>
	<tr><td>4. entity code variable</td>	<td>[r: htmlKey = "&#128274;"]</td>		<td>[r: markdownToHtml(htmlKey)]</td></tr>
</table>
}]

[frame5("FRAME5"): {
<table>
	<tr><th>Case</th>						<th>Value</th>							<th>markdownToHtml</th></tr>
	<tr><td>0. raw</td>						<td>🔒</td>								<td></td></tr>
	<tr><td>1. quoted</td>					<td>"🔒"</td>							<td>[r: markdownToHtml("🔒")]</td></tr>
	<tr><td>2. entity code</td>				<td>&#128274;</td>						<td>[r: markdownToHtml("&#128274;")]</td></tr>
	<tr><td>3. quoted variable</td>			<td>[r: key = "🔒"]</td>					<td>[r: markdownToHtml(key)]</td></tr>
	<tr><td>4. entity code variable</td>	<td>[r: htmlKey = "&#128274;"]</td>		<td>[r: markdownToHtml(htmlKey)]</td></tr>
</table>
}]

3. Observe different outputs to chat/frame vs frame5 where ������ is output to frame5 in certain situations for both 🔒 and 🔒

Expected Behaviour

Consistent and correct display of UTF-8 emojis across chat/frame/frame5.

Screenshots

MapTool Info

1.14.3

Desktop

Windows 11

Additional Context

chat log shows 🔒 and 🔒 is converted to ��

Also affects token notes/gm notes depending which MIME type and which tab is selected, but seems to display okay in the notes pop up, but not sure if this is related:

Notes text tab:

Equivalent Notes HTML tab:

Token Notes display: