WARC Indexing / Replay Problems

Hi,
Loving Webrecorder tools - great work! Thank you!
Using the latest player for Windows, I tried uploading a large-ish WARC file (3.2GB) created using a local install of Webrecorder running on Ubuntu.
We've experienced a few problems and are not sure whether it's to do with Webrecorder or the player, or both.
On some occasions the WARC stops indexing and hangs but the main problem is that, in the cases when it gets to 100% and opens, there is missing content (missing because it is there in Webrecorder in replay mode). We've also looked at the cache file generated and notice missing domains and URLs that we know form part of the exported collection.
Any ideas?
I can share the WARC file in question, if you need it.
Thanks for your help,
Tom

[ikreymer]

Thanks for sharing the WARC, please try the 1.8.0 release. We've made some improvements to large WARC indexing and should work much better.