Could you explain what you mean by "I can see it in red but I am just not able to reselect it."
QuickMask??? Click on the QuickMask symbol and see if you come up with marching ants.
Aside from that:
After you drew the path (which showed up as a Work Path in the Paths panel, if you didn't follow it up by clicking in the upper right corner of the Paths panel and clicked Save Path it's probably long gone.
I did it with the pen tool and put a red stroke on it.
I can't see a quick mask tool? Only vector mask tool at the bottom of the layers panel.
No, I didn't save it after i traced it.,- is that why it keeps disappearing and I'm unable to reselect it??? Surely you can retrieve it somehow? I don't remember any tutorials saying that you have to save the stoke?
If that is all that is on the layer (meaning a transparent background around the shape not a solid color like white for example) you can double click on thumbnail in that layer to reselect it.
Once selected, you can either create a mask, save it as a channel or convert the selection to a path.
Make sure you save as a psd or tiff as they support layers, paths, transparency and alpha channels. Other formats may support some or none of these features which may be why you can not find the path.
This is the Tech Sheet on the subject:
It contains this item under Manage Paths:
When you use a pen or shape tool to create a work path, the new path appears as the work path in the Paths panel. The work path is temporary; you must save it to avoid losing its contents.
Ok, the red you referred to is a Stoke you added. Then QuickMask is not involved.
Thank you very much for your help - so now I will save it every time!!
Much appreciated - I will have a look at the path tech sheet.
Thank you! feeling a bit happier now
Ok I have made a note of that - it may well be that I saved it as a jpeg.... It's definitely not there - even dbl clicking on the thumbnail, tried everything.
I will start again and save it as a path and a psd.
Thank you for your help!
Since a jpg does not support layers or transparency, the image would be flattened and therefore any transparent areas would be white.
So double clicking would select the entire document instead of just the object.
In this case using the magic wand or the quick selection tool would be beneficial for selecting the object.