tomb of horror map are not displaying correctly, all is blank

[lokioftheroses]

all

[Trenloe]

all
Which versions - the AD&D classic version or the D&D 5E version in Tales of the Yawning Portal? I can view the maps in each fine.

Please provide a screenshot of one of the maps that isn't working, with it unlocked and showing the image edit sidebar. For example:

https://www.fantasygrounds.com/forums/attachment.php?attachmentid=60361

[Zacchaeus]

If you are talking about the 5e Version (Yawning Portal) then right click over the name of the map in the image list and select revert changes. The maps in that module were recently updated to webp.

[LordEntrails]

If you made changes to the map you want to keep, instead of reverting changes, then you want to go into the FG Data Directory /campaigns/campaign/moduledb subfolder and edit the xml for the module and replace .jpg with .webp.

Of course, make a backup first!