TIFF and GIF not working with 18.3
Tiki Wiki 18.3 won't handle TIFF and GIF images. Both image gallery and file gallery do not handle them as they should. Sometimes, file gallery even complains that the image was not recognized as an image, then they cannot even be uploaded. But most of the times, images can be uploaded. And strangely enough, TIFF and GIF images get classified as image/gif or image/tiff, but despite that they get no thumbnails and are not displayed in either browser view or display.
This has been an issue with Tiki Wiki for several releases, multiple times coming and vanishing...
Libraries in use at my ISP:
GD Support enabled
GD Version bundled (2.1.0 compatible)
FreeType Support enabled
FreeType Linkage with freetype
FreeType Version 2.5.2
GIF Read Support enabled
GIF Create Support enabled
JPEG Support enabled
libJPEG Version 6b
PNG Support enabled
libPNG Version 1.2.50
WBMP Support enabled
XBM Support enabled