I am new user of QGIS and I am facing this problem

I created a map in my main project and so some layers. it was working pretty good.

But I don't know what I'd changed in parameters. and it gave me a blank map or dark.

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so my projection configuration is:

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and the layer is

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its grid projection is enter image description here

  • What is the source layer? Looks like a WMS layer? Or some other online source? How did you add it into QGIS? Feb 2 at 11:58
  • I created them from other program and some I downloaded from Sentinel-2.
    – SMAIL
    Feb 2 at 12:05
  • Post a screenshot of your actual project with the layers panel, not just the print composer. Some web layers don't like to be re-projected. For WGS:84 you should use EPSG:4326 and for web Mercator EPSG:3857. Feb 2 at 12:14
  • this was my project and works very good gis.stackexchange.com/questions/385903/…
    – SMAIL
    Feb 2 at 12:23

I solved this problem: 1st Set main project projection to (WGS 84 EPSG:3395) 2nd all images to (EPSG:4326 WGS 84) 3rd in layout manager I use (use project CRS) and Finally I rest the Extents parameters to my AOI and everything back to normal

Many thanks you all

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