P: LR4 doesn't display point curve adjustments made in LR3

Note to self: don't buy Version x.0 of Adobe software.

While I do agree that this whole issue was a pretty major bungle in LR4, I can understand why the above-posted script is the only available fix right now.

Other LR4 bugs have been reported to Adobe and I assume that they are trying to release a comprehensive LR4.1 update which will remedy a host of post-release bugs including, but not limited to, the tone curve issue.

Many folks out there are being affected negatively by other LR4 bugs which they, too, are holding their breath to see fixed with an LR4.1 update. Many of those people couldn't care less about tone curves not transferring, because they may very well not even use them.

So, yes... one one hand, Adobe seems downright neglectful and entirely lacking in a sense of urgency for not addressing the tone curve issue with an "official" update (only a "sort of official" script lodged in the depths of a bug report forum).

On the other hand, though, how many separate "bug fixes" should we expect them to release haphazardly as they work their way through all of the various bugs reported in LR4? I think it would be especially confusing and sloppy to just be pushing a dozen or two dozen sporadic bug fix patches out to Lightroom users in an effort to fix each and every bug as soon as humanly possible. The only reasonable and practical solution is to package a host of refined bug fixes in a single cumulative update (presumably LR4.1) which will address myriad bugs in one shot.

Again, the tone curve bug is a pretty sloppy mistake to have made it into LR4... I entirely agree. But it's happened... what's done is done... and the tone curve bug is surely not the only bug that has users here or there saying," C'mon!" But frantically patching these bugs on a one-by-one basis is just a very poor solution to these problems. Yes, it's rough for us LR4 users... and yes, I'm sure Adobe knows that... but what can they really do at this point besides address all the issues with a thorough update that tightens up the whole ship, so to speak? That's just where we're at right now. I would imagine that LR4.1 isn't too far off...

I was interested to see that Michael Frye has encountered this problem as well and also reported success with the script.

Michael's youtube video (https://www.youtube.com/watch?v=dZQps9...) reminded me of the power of curves that I used all of the time in Photoshop before LR2 and convinced me to use curves adjustment as a first step in LR3 (and now in LR4). I highly recommend Michael's video (it's free).

I began using curves in Photoshop routinely after reading Don Margulis' book "Professional Photoshop". I am delighted to find separate RGB curves available in LR4. Now, I'd love to get LAB as a second color space in addition to RGB (I've got some canyons that need better color contrast)!

Clearly Adobe have not proactively told purchasers of the upgrade of the risk, and clearly users will probably find this out the hard way over time. (That in itself tells you a lot about Adobe's tactics here)

Cfransw: oh to be so innocent & trusting! Adobe have cocked up significantly. This is no time for blind faith & rejoicing. this Team has failed not just those of us who are aware but all users who have this ticking time-bomb of an issue in their back catalogues.

Let's not forget Adobe is a profit driven corporation who loath the idea of thousands of users delaying purchase, but thats exactly what potential upgraders should do until it is safe to do so. While-ever they feel they have a docile user base who sit there, smile and take substandard products they will not be motivated to do the right thing, and that is what we are now seeing; Little communications & no final resolution.

I have to admit to being confused - on the one hand we have Adobe actually acknowledging that there is in fact a problem (Take note Apple...), and on the other hand there seems to be a total loss of momentum when it comes to making a fix globally available. Sorry but chucking out vague scripts is not, to my mind at least, the answer...

And yes Martin, I agree with you - I feel sure there are more than 86 people reading this information 🙂

Quote from George D. Purvis:

"This bug is especially insidious. The previews and icons appear correct in LR4 after import from LR3. The absence of the tone curve is not obvious until the preview is recreated by entering the Develop module or until the image is exported or printed. As a result, I was tricked into editing a number of images to correct them when I found they suddenly went flat when the tone curve was lost."

I aggree with that. I think many people didn't experienced the error either because they used LR4 just for new pictures since its release or because the changes weren't that obvious because of minimal tweaked tone curves.

Only 86 people means... 86 users who use (!) this forum. That doesn't mean that others don't read this thread or don't have that problem. Many users don't experience it... because their previews are the ones from LR3. 😉

I disagree about ruining the back-catalog.
If you don't touch the involved photos, and wait for a solution, there's nothing wrong with your LR3 to LR4 catalog.
More, in the above thread is a perfect solution which repairs these photos , for those of us who can't wait.
And there was, for me enough communication about it.

Also only 86 people have this problem. Not so many for having complaints about "ruined" catalogs!

Lr4 is a fantastic program, and I do trust the whole LR team.
Remember rule #5 Enjoy !

According to a terse tweet I got from Tom Hogarty, he feels Adobe is communicating effectively on this issue!!

I think many of us can agree otherwise, and perhaps its time we began to let other Lightroom users (who are innocently ruining their back-catalogues) know that Adobe has allowed a significant flaw into V4. and that they don't seem too concerned about addressing it with any urgency.

Tom, if you're listening (which I kinda doubt) your failure to take swift action and to keep users PROPERLY informed is a disgrace. you don't seem to have users best interests at heart, and as such I question your ability to run a flagship product like Lightroom. Perhaps its time to step aside & let someone who sees things from a users perspective take over.

I have not yet upgraded to Lightroom 4 after I read about this bug.
I use tone curve a lot and losing all my presets isn't acceptable.
I hope Adobe put this bug on top of the list and release an upgrade soon.

Thank you very much for the support,
Claudio

I was able to get and run the script, and it seemed to work fine. All my point curves were restored, even in virtual copies, and history seems to be intact. Great!

Michael Frye