See my last post, create the fluttercoin.conf file, delete everything except wallet.dat in %appdata%\fluttercoin and backup wallet.dat too.  Start 4.5.10 and sync up, afterwards delete the connect statements.

I am also testing builds for version 4.5.11, which only syncs and talks with nodes on 70010 or later.  I have not released this but have done 2 full syncs so far at different times, and syncs up correctly without issue.  Jarrid has also done numerous tests, and this one does not have the same sync issues as 4.5.7, which is still causing issues.  If everyone would update to 4.5.10 and if not synced up get this corrected, the sync issues would start to resolve themself.   Why after like 2-3 weeks (how long has it been...) we still have 50% running 4.5.7, which we have very little control over is beyond me.

MANDATORY - update to 4.5.10.  It is mandatory going forward that we have a reliable version that we can make code changes to, checkpoint properly, send alerts properly, etc.

Soomster, I see your MacOSX issue.  One thing we have found is that kid did not have yml files for MacOSX to properly build gitian builds for it.  We have built a verison for MacOSx but it had some crash issues.  I believe Slax0r is working on it.  I have a macbook as well, but I suck at compiling anything except on Linux...I will try to put some time in it for you, maybe 50% of our nodes are all Macs!

I also am trying to identify the issue with the initial startup crash (when you don't have anything yet).  I reviewed the code and the fix is in, so I am not sure what causes this issue at the moment.  But restarting the client the 2nd time fixes the issues.  That is aggravating.