Yesterday, during the worship presentation, I got the following  "notice":

TslideTextRenderer2 - Range check error.

After which all images in any context would show as black, but text and videos showed normally.

Restart (in the middle of the service) returned the program to normal.

I cannot reproduce the problem nor tell when it happened, so I realize that there's not likely to be a solution.

Just in the case it's a known problem, I'd like to know it.