I have a serious problem with my imac. Every time I import video files from my Panasonic Lumix S1H, the computer reboots. Anyone knows what can it be?
Please post your iMac specs, you can find them at the Apple menu > About this Mac.
Have you tried resetting your Premiere Pro preferences? Holding down the option key when launching Premiere will give you the option to restore your preferences to defualt. Resetting preferences is the usual first step when Premiere acts strangely:
Could it be that I am using an external hard disk through Thunderbolt wich speed is of up to 240 MB/s?
May be I need a faster hard disk to work with 4k projects
Tell us OS X and Premiere Pro versions. You need Premiere Pro 2019 at least.
What kind of footage is this? 6K at 4:2:2 10 bit? Can you try a clip at lower resolution and that is not 10 bit? Let us know.
Great. Can you create an 8 bit file and see if you can import that? It might be due to your format. That is what I'm trying to find out.
It sounds like you have some troubleshooting ahead of you in addition to resetting the preferences as Meg_The_Dog suggested.
Are you using File Import or are you using the Media Browser?
What happens if you import the clips into Adobe Media Encoder or Adobe After Effects?
What happens if you create a new user account?
What happens if you copy your source footage to a different location and import from there?
Here's the support page from Apple regarding this type of issue:
If you iMac has USB3 ports (so, 2012 or newer), I would consider doing a clean install of just macOS and Adobe Premiere Pro on an external USB3 SSD or Hybrid mobile drive as a troubleshooting step.
In Media Enconder happens the same thing. I didn't try in After Effects.
In premiere while I'm importing the video files, the imac reboots a few times, but once a could import the files, I can use premiere without problems.
The same things happens if I open an old project, when premiere stars reading the cache files, the imac reboots, but once premiere could read all the files (afer rebooting a few times) the premiere works good
Have you tried clearing teh media cache files? Whlie I haven't run into your particular issue, I've had clearing the cache files restore audio playback for some clips before.
I'm going to go way out on a limb here: the filetype is h.265 or h.264, long-GOP. Correct? How big are the files you're trying to import? Measured in several gigabytes in size perhaps?
The reason I'm asking is that there's an annoying bug with Pr when it comes to importing long-GOP (h.264/h.265) files in that only one CPU core is used, and it's pegged to 100% utization during that. It happens in both Windows and MacOS. (Yay, consistency? ...) Can you watch the temperature of your CPU during the import? I'm wondering if your iMac is getting worked so hard during the import that the CPU is hitting its "Oh crap, save myself!" temperature, and rebooting the rig? It's just a theory, but one worth looking into.
Very good guess. Although, when a Mac overheats, it shuts down rather than restarts.
If H264 or H265 were to be causing issues (in any NLE), the 1st thing to do would be to transcode to a mezzanine CODEC.
The "shutdown" vs "reboot" thing will depend on what's actually crashing. And this would require digging into the system logs, which I'm more than happy to do had I access to them. 🙂 It's sorta "my thing". That said, it's an easy test to do. Watch temperatures during the import. See what happens before the reboot.
And transcoding long-GOP files is, of course, doable. But the whole long-time benefit of using Premiere over other NLEs (of past) is that it's not required. And shouldn't be. As soon as this bug is addressed and fixed, it'll be less of an issue, thankfully.
In either case, it's up to the OP to try that test.
If it's overheating, it will be a shutdown.
Did you find a solution. I started to have the same problem for the last two days. Same files same machine same room temperature.
My files are 4K DCI 10 bit 4:2:2 H265.
I do not think this is related to file spec since I have been using these files for at least 6 months.
and also Imac Pro 2017 can import them.
Just a side note. This started to happed rite after I started to experiment with Canon Eos R5 raw and 4K 120 fps files.
I have macOS Catalina 10.15.5
Mac Pro 2019 16 Core with 196 Ram. Afterburner and two Vega II
Adobe Premiere 14.3.0
Hello Kbirand! I could not find what happens 😢. I formated my iMac and installed again adobe premier and adobe encoder (because when I tried to make proxies, my iMac suddenly rebooted). I thought that was the solution because It worked for some months, but last week this issue happend again but Just once. 🤷🏻:male_sign:
When you use Adobe encoder happens the same issue?
Not just media encoder but happens when I try to import to premiere. It is ok when I import one by one. But if I drag lets say 10 files, while importing i reboots. If I successfully import one by one when editing randomly reboots again. I could not find a pattern. It reboots when I am editin maybe 30 minutes later may be 10 minutes later. And this does not happen on a specefic file.
unfortunately is the same issue that happens to me. I can't solve where the problem comes from, if it is a problem from adobe or a problem from Mac. I have an Imac 2019
Ok the previous atempt has failed as well. But good news.
10.15.3 update seems to fix all the problems. I have spent a full day with no restarts.
Thanks a lot!!!!
last and final update. Its been 6 days from my last post and did not have a single glitch. I can confirm now that the update have resolved all my problems.
I AM BACK...
Unfortunately it happed again. This time I might know the reason but no solution at a time.
I was tyring to import 8K H265 files (Canon Eos R5) and premiere caused my mac pro 19 to restart. And then I suddenly remebered that this problem occcured for the very first time when I tried to import these files.
So my guess is that it is somehow related to H265 files. But it is not scientific 🙂 I have worked with numerous H265 files without a glitch but not with 8K H265.