# MakeCode blocks comments disappear

**URL:** <https://forum.makecode.com/t/makecode-blocks-comments-disappear/38464>\
**Category:** micro:bit\
**Created:** [August 5, 2025, 5:06pm UTC](https://forum.makecode.com/t/makecode-blocks-comments-disappear/38464 "2025-08-05T17:06:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Don](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.makecode.com/don/32/17989_2.png) [@Don](https://forum.makecode.com/u/Don)\
**Post date:** [August 5, 2025, 5:06pm UTC](https://forum.makecode.com/t/makecode-blocks-comments-disappear/38464/1 "2025-08-05T17:06:06Z")

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I have noticed that if I add a comment to the background in MakeCode blocks then I switch to JavaScript to fiddle with extensions, when I go back to blocks that comment is gone. It still exists in JavaScript, but is no longer visible in blocks.