<div dir="ltr"><div>If upgrading MapGuide is really not an option, then the only diagnostic recourse is to stop the MapGuide Server service and to run the MapGuide Server in interactive mode from the command-line (mgserver.exe run) and before running "mgserver.exe run", to set any appropriate GDAL environment variables to activate debugging (CPL_DEBUG=ON) and any additional diagnostic capabilities in the GDAL/OGR library.</div><div><br></div><div>Some relevant links below:</div><div><br></div><div>GDAL debugging in MapGuide: <a href="https://trac.osgeo.org/mapguide/wiki/MGOSGdalProviderFor26And30#Debugging">https://trac.osgeo.org/mapguide/wiki/MGOSGdalProviderFor26And30#Debugging</a></div><div><br></div><div>GDAL environment variables list: <a href="https://trac.osgeo.org/gdal/wiki/ConfigOptions">https://trac.osgeo.org/gdal/wiki/ConfigOptions</a></div><div><br></div><div>Hopefully by getting GDAL/OGR library to be more verbose, it can spit out the underlying cause for the "Fail to get image information" error that the FDO provider is sending to your MapGuide error log. </div><div><br></div><div>You can ignore the MOSAIC/CLIP/RESAMPLE error as that's a nothingburger error explained in the thread that Pierre linked in an earlier reply.</div><div><br></div><div>- Jackie</div><div><br></div><div>You wrote:</div><div><pre style="white-space:pre-wrap;color:rgb(0,0,0)">Hi,
we have developed a special frontend based on fusion. It takes a lot of work to adapt them (and
nobody would pay for it). All other 90 layers work perfectly, only the layers with tiffs cause
problems. Something must have changed somewhere in the depths of Server 2019...</pre></div><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><font size="1"><i>Please Note: I no longer create new posts or post replies to any OSGeo mailing list through nabble. As a result, you most likely won't see this message appear on nabble's view of any OSGeo mailing list and may only see this message through mailing list archives or depending on your mailing list subscription settings, through daily message digests or automated notifications from the mailing lists.</i></font></div></div></div>