error when invalidating S3 file that has spaces in filename

[dynamicworkplace]

Hi

I'm trying to invalidate on Cloudfront an S3 file that has spaces in the filename (File - Info - Distribution (CDN) - Invalidate).

The error I get is:

Cannot write CDN configuration. (bookmark-name)
Your request contains one or more invalid invalidation paths. Please contact your web hosting service provider for assistance.

When I try an invalidation on a file in the same bucket with no spaces in the filename, the invalidation works correctly.

I notice that Cyberduck replaces the spaces with %20 as expected, and the same folder/filename (without protocol and CNAME) that is displayed in the dialog's CDN URL works when manually creating an invalidation in Cloudfront.

Is anyone experiencing the same problem? I'd be grateful for any advice on resolving this (except changing the filename!)?

Thanks in advance
Dan