I'm using XnViewMP 0.81 x64. Found a problem in EXIF text handling.
Problem: When non-ASCII text is set to image comment, XnViewMP cannot show it correctly.
Steps:
1. Set a Japanese comment to an image with some image manipulating tool, such as XnView.

-> When viewing the thumbnail of the image with XnView, the comment is ok.

2. View the thumbnail of the image with XnViewMP.
-> The comment is shown incorrectly.


PS. Other properties, such as IPTC Object Name is ok.
XnView:

XnViewMP:

Regards.