We haven't yet been able to provide a permanent solution that doesn't require any user action, however please use this workaround in order to see and access the temple:
- approach the general area not far from the temple (for example next to the houses before you go to the chasm leading to it),
- save and exit the game,
- go to the Antara installation folder,
- find the files named 8618.etc and 8618.V56 and rename them (for example to 8618.etc.bak and 8618.V56.bak).
You should be able to approach the temple. After you no longer need to access the temple, save and exit the game, then rename the files back to their original filenames (8618.etc and 8618.V56).