So I downloaded a trial version of CDTS2020 to see if the find and replace docker has been fixed in Designer. But alas it is still malfunctioning!
Could you provide details about what is malfunctioning?
How do you find and replace Callout tool objects?
What do you want to achieve? Do you want to replace the whole object, the text, the style,....?
Bit late I know, but this is still a problem even after the first update. The Find and replace docker just randomly refuses to find objects. Example is replace a colour model - I choose any current colour model to be replaced with RGB. And it comes up with 'no objects found' when there are hundreds of dozens of objects on the page! This was a problem the first cropped up in the 2000 version from memory and was widely reported bug for Draw. The only workaround is to close the docker, close Designer, restart, open the docker again and then it magically finds the all the objects