I can confirm this issue for the tiled mosaic (even without the caching plugins Jack uses above). I suppose it came after the 4.9.x update. It’s not always occuring, might depend on how the images are arranged so only a certain combination might fire the notice.
I can drill it down to line 551, where we can remove this last part:
&& $this->images[3]->ratio >= 0.9; // images[3] apparently related to offset “3” notice
and the notice vanishes …
It’s only a notice, not an error, however I would appreciate if you could fix it. Thank you very much!
Y
