C4D "Incorrect file structure" corruption

[Dr. Sassi]

Thank you very much, salt-summer,

Your feedback is welcome, written with just the facts as you see it. Thanks for keeping it on that professional level. I'm grateful for it in many ways.

I have been in situations like that, where the problem is perhaps caused by several "sources," and it is difficult to tell where one's own contribution to the problem starts. You, as the one using the software, should not even be bothered by such things. For that, I say sorry.

However, sorries have very little problem-solving power, and I'm aware of that.

I will try to file a report with the data I got here in the thread. I hope Apple and Maxon can get something done here; the connections between the two companies are typically good.

Thank you, and fingers crossed, this will soon be a story of the past.

My best wishes.

[clerk-finish]

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.

[Dr. Sassi]

Hi clerk-finish,

Thank you very much for this additional information. Also, thank you for your neutral reporting and sharing information; I highly appreciate the professionalism!

Please know that I have started to explore what happened and the current state of understanding of the source of that problem.
I'm currently not clear if that is connected as well to the preview image problems some artists have mentioned.

Thanks for your patience with this. Yes, that needs to be cleared and fixed.

My best wishes!

[salt-summer]

@Dr-Sassi Thank you so much for your kind and understanding response. I really appreciate the time and effort you’ve taken to address this, as well as the level of support you’ve provided. Unfortunately, during my last interaction with support, I wasn’t able to create a proper log report because of how intermittent the issue is. At that time, everything seemed to be working fine, and I assumed the problem had resolved itself.

[Dr. Sassi]

Thank you very much, salt-summer.

That is the worst problem: something hard to reproduce, adding another layer of complexity.

Since everyone is worldwide, the one I needed to answer is 8 hours ahead of my time (Pacific Time), meaning he is out of the office already. Sorry about that.

I hope to get something useful to share.

Any product is only as good as its support, which is my personal "credo". I hope my little push will help. Fingers crossed.

Thanks again!

[winner-outcome]

facing the exact same issue of incorrect file structure over and over again. saving some corrupt files with the terminal workaround (packeged app path plus add -loadcorruptscenes). working on m4 macbook pro with files to a windows server... no clue, what i can do to prevent this frustrating problem from happening again...?

[Dr. Sassi]

Hi winner-outcome,

You asked what to do, and the answer is tech support, as I can't change the needed code if that is the issue.
If you have submitted a ticket, I can't see it; please share your ticket number so I can explore what happens.

I do not have a M4, so I have no practical experience.

If you have no ticket open, Tech-support is the way to go:
https://www.maxon.net/en/support-center

Sorry for your trouble. Please note this is the Site Issue forum.

My best wishes

[television-category]

I have the same problem for a long time.
Working on iMac Pro (Intel) and QNAP server.
I'm saving the auto backup copies on local HD, and it was working better then saving them on the QNAP.
BUT!!! Now these backup files also have this problem and I can't open neither one of them. This is really bad bad situation....
C4D 2025.2.1 Redshift 2025.4.2 iMacPro 2.3 GHz 18-Core Intel Xeon W

[salt-summer]

@television-category My situation hasn’t been resolved. For every project larger than 100 MB, I use local storage. I don’t have the same problem with other software that saves files to a network drive.

[Dr. Sassi]

Hi there,

Please share any problems (or solutions that you found) with Maxon's tech-support.

Thank you!

https://www.maxon.net/en/support-center

This is the Site Problem Forum. Not the right place for this.

Cheers