Premiere Pro crashing while importing xml from Davinci Resolve

I've been using Resolve round tripping from Premiere for a few projects and usually it works ok. But on this project the return trip to Premiere keeps causing a crash. It imports the xml from Resolve to 85 percent and then freezes. Every single time. 

I've followed this process. From PP File>Export>Final Cut Pro XML

In Resolve File>Import>Timeline (seleting exported xml file)

Doing my color grading in Resolve

In Delivery panel of Resolve, I select Premiere Pro XML and render using same specs as it came from PP.

Then in PP try to import the .xml file. Always reaches 85 percent then freezes. I have to force quite PP to do anything else

I'm using PP 23.6 and Davinci Resolve 18.5 on an iMac Retina 5K 27" 2017, using OS 11.7.2.

The files being processed are Apple ProRes 422 1080p 

Thanks for any ideas!?