# (Bug) Function Key Present after Focus was on layer panel

**URL:** <https://discourse.mcneel.com/t/bug-function-key-present-after-focus-was-on-layer-panel/216347>\
**Category:** Rhino for Mac\
**Tags:** mac\
**Created:** [February 25, 2026, 12:09pm UTC](https://discourse.mcneel.com/t/bug-function-key-present-after-focus-was-on-layer-panel/216347 "2026-02-25T12:09:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Tom\_P](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/tom_p/32/766520_2.png) [@Tom\_P](https://discourse.mcneel.com/u/Tom_P)\
**Post date:** [February 25, 2026, 12:09pm UTC](https://discourse.mcneel.com/t/bug-function-key-present-after-focus-was-on-layer-panel/216347/1 "2026-02-25T12:09:23Z")

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there is a strange issue where rhino goes fullscreen or the emoji panel pops up:

i thought it s my lazy, flat hand position on the laptop’s keyboard - pressing unwanted fn see this topic.

> [@8.4 - still to many paper-cuts, classroom feedback](https://discourse.mcneel.com/t/8-4-still-to-many-paper-cuts-classroom-feedback/176721/12):
>
> the official mac os x shortcut is  
> fn` **+** E  
> so lazy typing with hands low on the keyboard will accidential hit the Fn key which is in the lower left of the macbook…
> 
> same for  
> fn` **+** F will fullscreen the current window…

## BUG

but it s not my lazy hands & fingers …

i finally managed to document a repeatable workflow, that pop s up emoij panal (“\_extrudeCrv”) = fn + e = emoji panel  
or  
(“\_filletEdge”) = fn + f = Window Fullscreen

draw a firsts line / polyline  
draw a circle  
select the circle  
change active layer  
start typing e… or f…

bug captured on CCTV:

it might be related to a rhino / sytem not being restarted for a longer period.

[systeminfo\_tom\_p\_26-02-25.txt](https://discourse.mcneel.com/uploads/short-url/zRJnWnAPdAF7xLifJ751vkpCjnE.txt) (4.8 KB)

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**Author:** ![wim](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/wim/32/747482_2.png) [@wim](https://discourse.mcneel.com/u/wim)\
**Post date:** [February 25, 2026, 12:14pm UTC](https://discourse.mcneel.com/t/bug-function-key-present-after-focus-was-on-layer-panel/216347/2 "2026-02-25T12:14:05Z")

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Hi Tom -

> [@Tom\_P](#):
>
> fn + e = emoji panel

On the list: [RH-82180](https://mcneel.myjetbrains.com/youtrack/issue/RH-82180) Layouts panel with focus causes E-key to trigger emojis dialog  
-wim

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<div class="post-metadata">

**Author:** ![Tom\_P](https://sea3.discourse-cdn.com/mcneel/user_avatar/discourse.mcneel.com/tom_p/32/766520_2.png) [@Tom\_P](https://discourse.mcneel.com/u/Tom_P)\
**Post date:** [February 25, 2026, 12:34pm UTC](https://discourse.mcneel.com/t/bug-function-key-present-after-focus-was-on-layer-panel/216347/3 "2026-02-25T12:34:36Z")

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thanks  
did you manage to repeat it ?  
(so no further digging on my side required)

Layer Panel ! (not Layout)  
and it s the “fn” key that somehow is active … it might be a system bug, not a rhino bug.