Green Flash frames in ProRes HQ 2k sequence crash

[Duane Martin]

It is worth noting Apple released an update for Pro Applications (2010-02) today (Sept 15, 2010) that specifically mentions “Several memory fragmentation issues have been resolved.” I will report Friday whether this resolves the above mentioned problem in any way.

Duane Martin
Calgary FCPUG

[Robert Moore]

Did anyone ever find a conclusive answer for this?

I have a client who is editing a RED project (2k, or larger?). I do not know how they produced the ProRes files.

He did have, after a few weeks of editing, start to have green screen flashes in the Canvas window and sometimes followed by a crash.

What seems to be a fix is to dump the FCP Cache files found in the pref’s folder, or all of the 4 FCP prefs files (which is what I have been doing). So, I’ve been doing this about once every 4 weeks and he works until he sees it again.

But, I don’t now if this is a real fix. This problem has been very elusive.

It sounds like the solution is to use RedAlert to generate good ProRes files?

Whatever works!

Dump prefs, or produce ProRes using RedAlert…..

Later!

[Owen Daly]

Check for programs running in the background. We had this problem after installing SKYPE. After we ejected the skype icon from the desktop the problem went away.

[Dan Smith]

Hi

We had issues where by green flashes would appear on our canvas and external monitor (hdmi from blackmagic decklink hd).

ran lots of tests and found that the following cleared up the issues entirely:

unistalled FCP entirely using digital rebellion fcp remover application.
installed latest blackmagic drivers
switched our render scratch disk to the fibrechannel RAID attached to our server (over GigE smalltree ethernet); as a result the files can be written at 108MB/s rather than 55MB/s, the point I am trying to make here is that conventional internal hard disks are relatively slow when compared to fast network storage – i had overlooked this until i did some random speed tests with the black magic disk speed util! Turned out my harddisk was slowing me down when it came to rendered files.

anyway. it might work for anyone who is looking.

best

Dan

[Alan Langdon]

Todd, I seem to have the same problem you had years ago, now in 2012 on my Dual Core Xeon MacPro… Did you ever figure out what it was? I have the same issue, causing several crashes per day. Seems linked to opening too many bins with thumbnails visible…
Any info on how (if) you solved this wil be much welcome!

[Todd Vanslyck]

Hi Alan. I’m trying to scan back into my memory banks (which is getting more and more difficult) and I seem to remember I just created a brand new project in FCP and copied and pasted the programs into a new project. The project was HUGE and i think was corrupted.
Now that I’m thinking, I seem to remember Magic Bullet Looks being a culprit in quite a few of my crashes (probably about 75%) until I updated to a newer version.
See if either of those are the problem and let us know.
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