Per your request, I'm starting a new thread about my crash issues on my 2017 iMac i7, 24 GB RAM, Radeon 580 running Mojave.
This started after I duplicated a spread to add another logo for the client. (Yes, I know, I shouldn't be doing client work in a Beta version of anything, but it was all working so well!)
I cleared all data, as you suggested, and it's still crashing when I try to do anything (move logo, resize, delete second page, copy, anything...).
I've taken a screen recording and copied the crash report into a text file for you.
I don't have anything like Clean My Mac on my computer, so wondering if I have old versions hiding somewhere that are causing problems.
Please let me know if you need any other information. Thanks for whatever help you can provide.
PublisherCrash1.mov