I can think of two possibilities: one is a filename with some special characters like $ or {}, the other is different $UploadPrefixFmt, $FmtPV or $FmtV variables in different pmwiki/local/Group.php files.

The relevent line in the code is line 152 in upload.php containing
 if (!file_exists($filepath))

so when you see the ?action=upload link instead of the embedded picture, this means that on that line 152 PmWiki doesn't see that the file exists, which may mean that the $filepath variable (constructed from $UploadPrefixFmt) may be different for the same file from different WikiGroups.

Petko

[email protected] writes:
Awhile ago I noticed that on some PmWiki sites, I’d have a weird problems with images not being displayed when they are in a different group than the page they are being displayed on.
[...]



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