I’m running Lightroom 2.6 64-bit [1], printing on a Canon ipf6100. For some reason, Lightroom keeps losing track of ICC profiles, but is fine after being reminded of where they are. For example: Yesterday afternoon I sucessfully printed on some Ilford Gold Fiber Silk, using the ICC profile downloaded from Ilford’s website. In page setup, I’d told the driver to turn color matching off, and in Lightroom, I have the Ilford profile selected under Color Management. Everything worked fine. Then, this morning, after leaving the system up and Lightroom untouched since the last print job, I make a small brightness adjustment and try to print again. However, when I try to print I get a pop-up dialog warning:
“The custom profile selected for this print job is missing or invalid. If you continue this print job, the colors will not be managed by Lightroom.”
And giving me the choice of cancelling or printing anyway. However, if I cancel the dialog, click the Lightroom profile selection menu, select “Other…”, select the Ilford profile – - the same profile that was already selected and which Lightroom had just complained about — and then try to print, it works fine; no warning dialog is generated, and the print comes out of the printer looking the way it is supposed to look. Note that I have confirmed that if I simply cancel the warning dialog and immediately try to print again, without re-selecting the profile, then I continue to get the warning. It does appear to be the act of re-selecting the profile that clears the problem. Also, if, immediately after clearing the problem, I go on to make additional prints, the problem does not recur. It is only after Lightroom has sat idle for some time that I get this problem.
This has been happening on a regular basis for some time now. Sadly I cannot say for sure if it was happening prior to the upgrade to Lightroom 2.6
Clearly this is not the most critical of issues, as the work-around is simply to re-select the profile. But I do wonder if it is a symptom of something more serious, and I of course would love to hear that there is some known way to fix the problem.
[1] System: Vista Home Premium 64-bit, AMD Phenom 9650 Quad Core, 8GB memory.
