Bug in crop command with virtualstack?

[Pedro J CamelloDr Pedro J Camello]

I open a relatively big file (around 1000 slices) with the File>Import>Movie(FFMPEG) plugin, using the virtual stack option.
Then I need to crop the area of interest of the stack to make the file lighter and the posterior processing faster. When I made this in last december 2013 I did not get any problem. However, I get now this message error:

>(Fiji Is Just) ImageJ 1.48q; Java 1.6.0_24 [64-bit]; Windows 7 6.1; 21MB of 2791MB (<1%)
 >
>java.lang.IllegalArgumentException: Argument out of range: 1
> at ij.VirtualStack.deleteSlice(VirtualStack.java:63)
> at ij.process.StackProcessor.resize(StackProcessor.java:120)
> at ij.plugin.Resizer.run(Resizer.java:136)
> at ij.IJ.runPlugIn(IJ.java:169)
> at ij.Executer.runCommand(Executer.java:131)
> at ij.Executer.run(Executer.java:64)
> at java.lang.Thread.run(Thread.java:662)


Could anybody help with this? I really need to crop the stack....

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[Pedro J CamelloDr Pedro J Camello]

Now is worst.
When I use the Duplicate command I also get an error:

>(Fiji Is Just) ImageJ 1.48q; Java 1.6.0_24 [64-bit]; Windows 7 6.1; 117MB of 2791MB (4%)
>
>java.lang.NullPointerException
> at ij.plugin.Duplicator.run(Duplicator.java:86)
> at ij.plugin.Duplicator.run(Duplicator.java:51)
> at ij.IJ.runPlugIn(IJ.java:169)
> at ij.Executer.runCommand(Executer.java:131)
> at ij.Executer.run(Executer.java:64)
> at java.lang.Thread.run(Thread.java:662)

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