P: Undo function fails and applies a preset instead

Huzzah! A couple of my esteemed colleagues have figured out what's causing this problem. We don't have a fix yet, but we're working on it, and everyone agrees this is a nasty bug.

Thanks,
Ben

Thanks, everyone. We have a couple theories that we're investigating. I'll post back here when I have more info, or if I have additional questions.

-Ben

Win 8 64bit, problem in LR5. Even in catalogs with only a couple of dozen images total, it will randomly just a apply a pre-sent when trying to undo. Both using ctr+z and the undo from the dropdown menu. Couple hundred pre-sets installed. Seems to always want to apply a pre-set that is for black and white conversion,

I have just a couple of custom develop presets. The problem has only struck me a few times. (Windows 7 64, LR 5.2RC and probably LR 5.1.)

Win7 64 bit. Had this problem win LR4, still have it with 5.

I don't think that I have that many presets but I do have the Seim Efx color and silver set. A couple of Kubota sets and maybe a few even smaller ones.

I'm also an app developer so if you need a tech savvy person to help diagnose the issue I may be able to help.

System is Win7 64-bit Home Premium SP1 / 8GB / i5@2.40GHz

Develop Presets: 21 folders with 713 presets (53 of those are LR presets); I've only added a handful of presets since L3, the problem began with LR4 (but at this point I can't remember what version of 4).

When this occurs (the undo issue) nothing else works, for example I can't File -> Exit (that applies the preset too), the only way out of LR is to use the windows "X" top right corner to exit.

I've followed every direction to optimize my catalog and I haven't found a specific series of events that triggers this. My catalog is 3.3 GB.

System is Win7 64-bit Home Premium SP1 / 8GB / i5@2.40GHz

Develop Presets: 21 folders with 713 presets (53 of those are LR presets); I've only added a handful of presets since L3, the problem began with LR4 (but at this point I can't remember what version of 4).

When this occurs (the undo issue) nothing else works, for example I can't File -> Exit (that applies the preset too), the only way out of LR is to use the windows "X" top right corner to exit.

I've followed every direction to optimize my catalog and I haven't found a specific series of events that triggers this.

I have 200 or less presets. windows 7. The problem happens every time I use lightroom regardless of how many pics or what I am doing. I had to revert to my old copy of lightroom 3 since this renders lightroom 4 useless.

I have probably > 100 presets, but the bug seems to appear during a lot of editing. The preset preview window often doesn't work and has to "catch up", and then the bug appears. Strange considering I have put recently completed a new machine and install with a fresh copy of 4.4

Hi again - I have 140-something presets, so not too too many. I used to have this problem fairly frequently, but haven't had it now for a loooooooong time - can't figure...
Rob