I know this is an olde-thread, but I believe we stumbled upon the solution here, check your residency-settings to see if you are pooling-out: Runtime virtual texture sets landscape to lower mip - #59 by cannasoftware
I know this is an olde-thread, but I believe we stumbled upon the solution here, check your residency-settings to see if you are pooling-out: Runtime virtual texture sets landscape to lower mip - #59 by cannasoftware