Possible Bug in gameplay.title() with Empty Subtitle (Intel OK / AMD Issue)

Dear Minecraft Education Support Team,

Hello.

I operate a programming school in Japan and use Minecraft Education in my lessons. I would like to report a possible issue regarding the behavior of gameplay.title() in MakeCode (Python).

■ Issue Summary

When using gameplay.title() with an empty subtitle string, the title does not display in certain environments.

The following behavior has been confirmed:

On PCs with Intel CPUs, the title displays correctly.
On PCs with AMD CPUs, the title does not display.
Previously, the title displayed correctly even on AMD CPU machines.
Recently, the issue has started occurring only on AMD environments (confirmed on multiple devices).

Because this behavior differs by environment and did not occur in the past on AMD machines, we suspect there may have been a recent change or regression.

■ Reproduction (MakeCode Python)

On affected AMD machines, the following does NOT display the title:

gameplay.title(mobs.target(LOCAL_PLAYER), "TITLE TEST", "")

Using a half-width (ASCII) space also does NOT display the title:

gameplay.title(mobs.target(LOCAL_PLAYER), "TITLE TEST", " ")

However, using a full-width space character (U+3000) DOES display correctly:

gameplay.title(mobs.target(LOCAL_PLAYER), "TITLE TEST", "　")

■ Additional Observations

player.say() works correctly in all environments.
Executing the command directly via Minecraft works correctly:
title @s title {"text":"HELLO"}
The issue appears to affect only gameplay.title() when the subtitle is an empty string or a half-width space.
Using a full-width space works as a workaround.

■ Environment (example)

Minecraft Education: Windows version (latest)
Coding environment: MakeCode Python
OS: Windows 10 / Windows 11

Intel CPU machines: Works correctly
AMD CPU machines: Issue occurs (previously worked correctly)

■ Request

Could you please investigate how gameplay.title() handles empty subtitle strings and whitespace characters internally?

Since this behavior recently began occurring only on AMD environments, it may be related to a recent update or a regression.

If necessary, I can provide minimal reproduction code and detailed environment information.

Thank you very much for your time and support.

Yuta Yamaguchi

February 25, 2026 07:26
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Would like to comment that the makecode title block does not currently work on PCs at this moment if subtitle is empty.

Danny Support Agent

February 25, 2026 23:50

Hey there HT!

It looks like we have an open ticket for you on this, we will respond there!

And thanks for the insight as well Yuta!

H T

February 26, 2026 01:06
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Hi Yuta,

Thank you very much for sharing this information.
I have been investigating this issue in detail, and your comment helped confirm that it is not just happening in my environment.

Your insight about the MakeCode title block not working when the subtitle is empty was extremely helpful.
I also wanted to share that I have now observed this issue not only on AMD machines but occasionally on Intel PCs as well.

I really appreciate you taking the time to post this helpful information.

Thanks again!

Kaleb Support Agent

February 27, 2026 16:35

Hey there,
Just as an update for the thread! This is a bug we're tracking now and we should hopefully have a fix for it in a future release!

February 28, 2026 00:42
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Hi Kaleb,

Thank you very much for the update and for tracking this issue.
I really appreciate you and the team taking the time to investigate and work toward a fix.

I’m glad to hear it has been identified as a bug, and I look forward to a future release with the fix.

Thanks again for your continued support!

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