The popup toolbar has a different size (one extra column) when it pops-up than when its floating. This pushes all the icons out of sync if they are expected in a specific location during use.

hi @ThomasAn can you send me your _SystemInfo? thanks

Same problem here. Seems like resizing of the Popup does not work like in R7 anymore. It´s frustrating for the workflow.

Rhino 8 SR3 2024-1-9 (Rhino 8, 8.3.24009.15001, Git hash:master @ 3541fa287a013b0f17849f0740f1e43a44031bfc) License type: Evaluation, build 2024-01-09 License details: Cloud Zoo Expires on: 2024-04-24 Windows 10 (10.0.19044 SR0.0) or greater (Physical RAM: 16Gb) .NET 7.0.0 Computer platform: LAPTO…

Hmm, I cannot reproduce that here in an older version, nor in the latest in house. But there is this open issue regarding the size of popup toolbars: RH-78836 PopUp sizing

Its the v8 version on the McNeel site. Downloaded yestedday.

It could be a Windows 10 only bug, but have no Win 10 box to test here right now.

If it was a windows thing, then v7 would also struggle. (then you’d also have to ask, what did v8 forget about windows that v7 knows ? )

@ThomasAn V8 was largely rewritten to be cross-platform compatible between Windows and Mac. IMHO, there was inadequate WIP/Beta testing for all this new code, so we’re playing catchup as fast as we can. If you’re more comfortable with V7 in it’s mature state (36 rounds of fixes), then maybe use i…

My thoughts too. V7 seems fine for now. On further inspection, this part is completely broken. It is not just one column, it’s all of the columns, the popup seems to have a fixed size of it’s own.

Yup. That’s on the to-be-fixed-soon pile too. Actually, this has been reported multiple times and is on the developer’s “Open” list.

V8 Popup toolbar doesn't keep its size

Rhino

brian (Brian Gillespie) April 14, 2026, 9:42pm 23

RH-73095 is fixed in Rhino WIP

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V8 Popup toolbar doesn't keep its size

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