Confirmed here. I'm seeing the same problem. The "like" format for View Item Pages that has been the default for item URLs in the API for a while, seems to now be failing for eBay FR. That "like" format continues to function fine in other eBay country-sites. Definitely a bug in the API. I haven't tested it without the affiliate parameters - a non-rover link. How does it behave in that situation?
This is definitely a bug. The problem seems to be centered around
eBay.fr not rendering the new hybrid landing pages (HLP), denoted by '/like/' URL syntax for view item pages. 1-2 years ago, the default for affiliate/rover links was changed to land on such HLPs, so that's why you're seeing this problem when you use affiliate parameters, and not seeing it without the rover syntax. This isn't exactly a Finding API problem, nor is it a rover server URL resolving problem. It's a problem with
eBay.fr displaying those HLP pages that I think every other eBay country-site displays properly. Hopefully someone at eBay Dev will see this thread and relay the issue to the proper internal department. Maybe the eBay "front-end development team" (I'm not sure what it's called). You can get their attention faster by submitting a tech support ticket, but that may cost some money. Coincidentally (or not), over in the ePN discussion group/forum, people noticed that ePN's RSS feeds (based on the Finding API) are exhibiting a problem generating rover/affiliate links for
http://community.ebay.com/t5/eBay-Partner-Network/RSS-feed-doesn-t-work-today-for-ebay-fr/gpm-p/24405732 (you need to login and join the ePN group to read that thread) A workaround, albeit time intensive, would be to build your own affiliate/rover links, and NOT pass the affiliate parameters into the API call. You'd need to get familiar with rover syntax, and you'd build custom destination URLs without the '/like/' component (or use the links returned from the non-affiliate API call), then roverize them yourself. Another thing you can do: take the current problematic rover links and do a string replace to remove '/like/'. This would be an inelegant brute force "hack" that you'd need to test of course, but it might be a quick workaround until the root of the problem is solved by eBay.
OK, I have reply to the "ePN discussion group" message to link this question, it's probably the same problem. I will try the first workaround in few days, I think I can do it. For the second workaround, I think I can't do it, because rover.ebay do the forward and I can't override the URL (I think??).. Thank's a lot ! Ludovic