v21.0 on Amazon Fire TV Cube over NFS no longer plays DVD ISO or filesystem extracts



I have upgraded to v21.0 on my Amazon FireTV Cube, my library is accessed using NFS from a QNAP NAS.  DVDs are stored as either an *.ISO blob or an extract of the filesystem (VIDEO_TS etc)  – they are not transcoded.  Previously this played without problems (v19) however it now fails to play.  BluRay images play without issue.  I have not tested an attached DVD player alhtough I have all the disks as using a media library is the point.

My full log file at
                                                           https://paste.kodi.tv/atupekaroh
suggests that a symbol is missing 

2024-05-13 18:42:12.238 T:30133 error <general>: Unable to load /data/app/org.xbmc.kodi-98nE7EMcj9u8n-Nm3oZ5KA==/lib/arm/libdvdnav-arm.so, reason: dlopen failed: cannot locate symbol “dll_fstatvfs64” referenced by “/data/app/org.xbmc.kodi-98nE7EMcj9u8n-Nm3oZ5KA==/lib/arm/libdvdnav-arm.so”…

is this a bug in kodi or are ISO/DVD filesystems no longer supported? Is there other information which may be useful?