Terminal renders gaps in between some lines #2247

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opened 2026-01-30 22:50:32 +00:00 by claunia · 0 comments
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Originally created by @ocalvo on GitHub (Jun 26, 2019).

Environment

Windows 10 19H1

Windows build number: 10.0.18362.175
Windows Terminal version (if applicable):

Any other software?
[ZtreeWin](http://www.ztree.com/html/ztreewin.htm)

Steps to reproduce

1 - Install ZtreeWin, or PowerShell PowerTab
2 - Make Terminal Window large
3 - Execute ztw or [TAB] in PowerShell with PowerTab enabled

Expected behavior

PowerTab Good ZtwOLD

Actual behavior

PowerTab Bad ZtwNEW

There are multiple horizontal lines that should not be there.

Originally created by @ocalvo on GitHub (Jun 26, 2019). <!-- This bug tracker is monitored by Windows Terminal development team and other technical folks. **Important: When reporting BSODs or security issues, DO NOT attach memory dumps, logs, or traces to Github issues**. Instead, send dumps/traces to secure@microsoft.com, referencing this GitHub issue. Please use this form and describe your issue, concisely but precisely, with as much detail as possible. --> # Environment Windows 10 19H1 ```none Windows build number: 10.0.18362.175 Windows Terminal version (if applicable): Any other software? [ZtreeWin](http://www.ztree.com/html/ztreewin.htm) ``` # Steps to reproduce 1 - Install [ZtreeWin](http://www.ztree.com/html/ztreewin.htm), or PowerShell PowerTab 2 - Make Terminal Window large 3 - Execute ztw or [TAB] in PowerShell with PowerTab enabled <!-- A description of how to trigger this bug. --> # Expected behavior <img width="437" alt="PowerTab Good" src="https://user-images.githubusercontent.com/2091582/60294002-3f5c9980-98d5-11e9-9463-502baed71a5a.PNG"> <img width="607" alt="ZtwOLD" src="https://user-images.githubusercontent.com/2091582/60141398-2388b480-976a-11e9-8c5d-71e4fde9d7a5.png"> <!-- A description of what you're expecting, possibly containing screenshots or reference material. --> # Actual behavior <img width="487" alt="PowerTab Bad" src="https://user-images.githubusercontent.com/2091582/60294013-44b9e400-98d5-11e9-9636-f62b2c2267c0.PNG"> <img width="891" alt="ZtwNEW" src="https://user-images.githubusercontent.com/2091582/60141401-27b4d200-976a-11e9-892b-cf53ecc0d84e.png"> <!-- What's actually happening? --> There are multiple horizontal lines that should not be there.
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Reference: starred/terminal#2247