Export triggers drive eject? or network fail?

I'm experienceing nearly the same issue! During the end of an export, my Synology NAS will disconnect. When I reconnect the video file is usually there and finished, but there's also an additional temporary file named the same but with some variation of "._00_" added to the file name.

We installed a new Synology NAS at the same time I updated my OS to Sequoia, so it's been hard to troubleshoot what point in the sysem is failing.

MacBook Pro Apple M1 Max

Sequoia 15.1.1

Adobe Premiere or Media Encoder

Synology Diskstation DS1821+

DSM 7.2.2-72806 Update 2

10gb local network

It would help a great deal if you could give us a breakdown of your entire system

Computer - brand, CPU
OS version

Network
Switcher

Synology hardware
DSM

Anything else you might think is relevant.

We hired Will @ SpaceRex to look over our Synology system. (Great guy...he is THE Synology guru)
Two hours later and he found what he thought was a bug in Synology's DSM code.
He's in conversation with them but no updates as yet.

What I can say is...if you copy or export the media to an internal or external drive first and then to the NAS it should be fine.

I also have trouble deleting files. So I have to MOVE them to the recycle bin manually.

Im also having a similar issue. When building proxies that are located on my Synaology NAS the progress on some bigger clips will get to the end and then just pause on 100% for a little while and then eject the NAS from my mac. Very very annoying as I can not find a solution yet and we have a massive backlog of work to get sent out....

We have the same issue on multiple machines. Most issues go away when exporting locally instead of to the NAS. It happens so much that we almost expect it to happen. 

Thanks Bruce...will do!

If you can provide a sequence with media and the output preset (.epr file) you're using which, when rendered, reliably eject your Synology volume from the OS, we definitely want to pursue the issue further. Private upload space available, upon request.

Unfortunately my problem has not gone away.
And I've discovered that Media Encoder will occasionally eject my mounted NAS droves as well.
Fun.

Contact Synology who suggested tweaking a few settings.
Didn't help.
I don't blame them for suggesting, but no settings changed changed before this started happening...so...

I've updated to the latest OS.
Unfortunately this rather large project was started in Beta.

I have looming deadlines that preclude emergency from trying to sleuth out this issue by sending along sample projects and media.
And the problem is so random that I'd doubt you'd get the same result.

I'm at a loss.

Found this online from 2019. No resolution though. https://community.synology.com/enu/forum/1/post/127748 

I think so. We're really pushing a lot of deadlines and the work has to push tech issues to the back seat.
We will try and get something together to trigger this 'reliably'.

That said, we just had two more crashes - the second trigged by a Quicktime export rather than H264.

Our main reason for posting is to see if it's a more common issue.
It appears, at this time, no.
So I'm suspect that it must be something with my system and configuration.

However, I'm very happy to get the help.
And appreciate the quick replies.

The last sudden eject triggered this attached message.
Disk full???
For the record, the remaining disk space for the media and projects is over 62Tb.
So...not that.