The latest version of the compiler (9.02) aborts with an access violation (attempt to read from location 00000034) when asked to compile the test file (Link: https://www.dropbox.com/scl/fi/eskn8v3gjrtd152ngzv2u/avio.f90?rlkey=2rr7u1xly4fpofvsgvxr777qq&dl=0 ) with the options /64 /opt .
The bug is rather delicate. For example, removing the 12 comment lines in the source file that begin with '!' makes the bug go into hiding.
Emphasis: The bug is related to the running of the compiler itself.