Hi Maru, thx for the response.
I didn't have any crash with the texture or scene, that's weird.
I was told (by your colleague) that there is not too much to be done here until there is some new progress on corona displacement tech.
As also suggested in your ticket the following can somewhat help with the current issue you are experiencing, until further improvements are introduced:
"...proceed and tessellate your geometry even more, and also apply a CoronaDisplacement mod modifier, this would help a lot with the face normal-expansion of your displacement. Lastly you might want to use min-max level values in your displacement modifier and try lowering your screen (px) quality to something like 0.5-0.8."
Lastly, do note that Arnold's displacement values scale differently, displacement intensity is somewhat low so you'll have to set corresponding values for corona accordingly. Arnold's displacement value of 1.0 is something like 0.1-0.3 cm for Corona depending on the scene setup. Example:
https://corona-renderer.com/comparer/GZqyOW(internal id=597129430)