I have been having a lot of trouble getting my Fujifilm X-Pro1 work through Alamy quality control using Lightroom. I have been trialing the new Capture One Pro 8 and have now had 3 submissions in a row go through with no problems. As a long time C1 user I knew it was pretty good, but IMHO Lightroom now has a very serious rival. I would suggest you give it a go.
UPDATED 1 NOVEMBER
It would seem that maybe I was a bit premature with my comments about Alamy submissions above as I now have a submission stuck in Quality Control which is really annoying. I am obviously VERY careful about my work which is accepted with no problems by 4 other libraries, but for some reason I am having trouble with Alamy lately. This has been going on for maybe 6 months. I would stress that I am no newcomer to them as I have 3000+ images with them and sell pretty regularly.
Nothing in the above detracts from my feelings about Capture One V8.