Hi Michael,
Welcome to the Box Community!
This would be something Box Support team would like to investigate and may require specific account information. I've gone ahead and created a ticket for you so that an agent can work directly with you on looking into this.
Please check your email for details and updates.
This continues to be a problem. I am running MacOs Ventura (13.3 (22E252)). I am using the Safari Version 16.4 (18615.1.26.11.22). If I drop a file from BoxDrive onto Safari or open the same file through the finder I get an error in the browser, "Safari Can't Open the Page – Safari can't open the page. The error is: "The operation couldn't be completed. Operation not permitted" (NSPOSIXErrorDomain:1)"; with an additional windoid error message, "Safari cannot open the page because the address is invalid." I am able to open the same file (using either method) in Chrome and Firefox.
I am also experiencing the same issue with Safari 16.5.1 on macOS Ventura 13.4.1 (22F82) - when opening an HTML file from within Box Drive (2.33.130), I get the following message:
"Safari can’t open the page. The error is: “The operation couldn’t be completed. Operation not permitted” (NSPOSIXErrorDomain:1)"
But then if I move the file outside of Box Drive (e.g. to my Desktop) it opens happily in Safari.