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IDProjectCategoryView StatusDate SubmittedLast Update
0003923SAS.Планета[All Projects] Баг / Bugpublic09-12-2025 04:5710-12-2025 07:59
Reporterqq117511 
Assigned To 
PrioritynormalSeverityminorReproducibilityalways
StatusnewResolutionopen 
PlatformWindowsOS7OS VersionEnterprise
Product Version250505 
Target VersionFixed in Version 
Summary0003923: Map flickers while zooming
DescriptionWhen I use sas.planet and drag the map with the mouse, the whole map view keeps flickering as if it is being completely redrawn on every small move. Instead of smoothly panning, the tiles flash or momentarily disappear and then reappear, so the entire map looks like it is constantly “reconstructing” during dragging. This makes map navigation uncomfortable and feels like a rendering or refresh bug in the current version.
TagsNo tags attached.
Attached Files? file icon 12月10日.mp4 [^] (1,349,242 bytes) 10-12-2025 04:35
png file icon ScreenShot_2025-12-10_124042_409.png [^] (335,625 bytes) 10-12-2025 04:40
? file icon 121003.mp4 [^] (1,549,301 bytes) 10-12-2025 04:45

- Relationships
duplicate of 0002686confirmed "Моргает" карта при активной закачке и изменении зума 

-  Notes
(0020568)
zed (manager)
09-12-2025 09:10
edited on: 09-12-2025 09:19

 Can you record a video?

Are there any hardware issues (CPU, RAM, HDD)? Does the nightly version behave the same way? Could you check if any older version works correctly?

Windows 7 is a fairly old system, but I periodically test the program in a virtual machine running Windows XP and Windows 7 and have never encountered the problem you described.

Regarding redrawing, the program does indeed completely refresh the image when the map is moved; there's no other way. This is done using the CPU. But it usually happens very quickly.

You can look at the specific numbers in the debug version of the program: View - Debug Info and specify the ViewState;OnPaint;OneTilePaintSimple filter. See what values ​​you have there?
(0020569)
qq117511 (reporter)
10-12-2025 04:39

 I tested this on a 5080 GPU under Windows 11. At first I thought it was the latency from fetching data over the internet. But even after the files were cached locally, the flickering was still very obvious—really noticeable.
(0020570)
qq117511 (reporter)
10-12-2025 04:51

 9950X
5080
32G
win11
(0020571)
zed (manager)
10-12-2025 07:58

 Ah, it's not dragging, but zooming! Yes, there is a long standing bug with flickering on zoom change. And I have no idea how to fix it.

- Users who viewed this issue
User List Anonymous (34x), caddis (1x), ingener (2x), zed (9x), qq117511 (24x)
Total Views 70
Last View 11-12-2025 13:36

- Issue History
Date Modified Username Field Change
09-12-2025 04:57 qq117511 New Issue
09-12-2025 09:10 zed Note Added: 0020568
09-12-2025 09:19 zed Note Edited: 0020568 View Revisions
10-12-2025 04:35 qq117511 File Added: 12月10日.mp4
10-12-2025 04:39 qq117511 Note Added: 0020569
10-12-2025 04:40 qq117511 File Added: ScreenShot_2025-12-10_124042_409.png
10-12-2025 04:45 qq117511 File Added: 121003.mp4
10-12-2025 04:51 qq117511 Note Added: 0020570
10-12-2025 07:54 zed Relationship added duplicate of 0002686
10-12-2025 07:58 zed Note Added: 0020571
10-12-2025 07:59 zed Summary Map flickers while dragging in sas.planet => Map flickers while zooming

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