microsoft / microsoft/calculator

'Always on Top' button disappears if there are multiple sessions open on a device with low processing power

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#667 12 comments 0 reactions 0 assignees View on GitHub

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Area: User Experience Bug Pri: 3 triage approved
Dominant language
C#
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Description

Describe the bug
'Always on Top' button disappears if there are multiple sessions open on a device with low processing power

Steps To Reproduce

  1. Launch calculator on a VM or device with low processing power
  2. Repeat step 1 about 10 times
  3. Observe how many sessions have an 'Always on Top' button

A few sessions do not have an 'Always on Top' button and the UI can shift down slightly.

Expected behavior
'Always on Top' button always appears regardless of processing power

Screenshots
Needed

Device and Application Information

  • OS Build: 10.0.18970.0
  • Architecture: X64
  • Application Version: 10.1907.24.0
  • Region: en-US
  • Dev Version Installed: True

Requested Assignment
I'm just reporting this problem. I don't want to fix it.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

The issue names no source files, tests, or entry points. Start by reproducing the missing “Always on Top” button with multiple Calculator sessions on a low-power VM, then trace the UI path that creates that button and compare sessions where it appears or disappears. Done means the button remains visible and the UI does not shift across repeated launches.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
25/100

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