There is no longer a setting for 'Allow smoothiing' in the Bitmap properties window.
Could it be this has dissapeared in the latest Animate version (2020)?
Or am I missing something?
Yeah, apparently it does not appear for some users...
On my machine it is there, but there have been multiple reports about this, so clearly a bug.
As a workaround, you should still be able to select multiple bitmaps and choose 'allow smoothing'.
I'm on OS X here rinning Mojave and imported PNGs at 8 and 16 bit as well as a JPG and see "Smoothing" for all 3 images. What's your platform and bitmap format?
I'm on Windows 10 and there is only a box with the name, no other boxes, no matter what format.
When I select multiple bitmaps and then ask the properties, then all the boxes including the smoothing options are there, but when I change the properties then, they are not saved: changing a value and reselecting the same bitmaps and asking the properties shows again the default values.
Did you ever solve this?