I checked with tech support when this was first happening- results were inconclusive (running through possibilities like including the type of drives we are using in our servers), and at the time they said nobody else was reporting this.

Hi there,

This may or may not be helpful, but the issue seems to have stopped sometime since the last MacOS update... Started a project, forgot to save locally, but haven't had any corrupt file problems (yet). It's a small project, but when this was happening the size or complexity didn't seem to be a determining factor. Based on this I'm guessing macOS is the likely cause. I'm currently on C4D 2025.1.1 and Sequoia 15.2. I will check back if I start having this issue again (I'm having other, unrelated issues, but that's life with C4D, ya?).

Hello,

Running C4D 2025 on a Mac Studio (Sequoia).

My scenes on multiple projects are becoming corrupted upon save (Incorrect file structure), even some of the incremental backups! All my projects are on a server.

I have only (seemingly) had this problem on my workstation- I also use a MacBook pro, and opening the files on that is often how I determine they are corrupted. It has happened on other people's workstations as well. It has happened over multiple C4D versions.

My only workaround, if the file is still open in Cinema, is to save a copy to a local drive, then copy that back to the project on the server.

It also is inconsistent- doesn't always corrupt the saves.

Seems to be pointing to either a C4D bug or something with our server, but I have no idea how to troubleshoot it.
Has anyone else experienced this??

Thank you.