Really appreciate that answer, I'm going through it now and trying to apply it but not quite getting the desired result. My steps are as follows
1. In my available and enabled vhosts files under conf.d, I added
ErrorDocument 404 /redirect/error
after the "DocumentRoot" entry
2. In those same files...
Thanks for pointing this out Jorg, I spent so long trying to understand what was wrong with my code before stumbling on this...
Seems like the issue is tracked at https://wcm-io.atlassian.net/browse/WTES-64. Is there a way to +1 it or something to indicate that other people are having this problem...