The TIFF plugin generates images without the RowsPerStrip tag defined. This causes read issues with most TIFF readers in the willd, in particular when the LZW compression is enabled: see https://issues.qgis.org/issues/18274
A reasonable solution is to create stripped image by using the chunk height that is used to compress the data.
The attached patch implements that
|For Gerrit Dashboard: QTBUG-68609|
|231540,2||Fix tiffhandler: ensure saved tiffs have suitable ROWSPERSTRIP tag set||5.11||qt/qtimageformats||Status: MERGED||+2||0|