Sequence aborting after the second frame

I am using SGP2.6.0.24 and PH2.6.3dev7
Between my first frame exposure and the second frame, SGP is going to recover mode and never recovers for the night. That is fairly consistent for a few nights now. I downgraded to 2.6. 0.21 (and I was able to run the sequence with no issues). Went back to 2.6.0.24 and the issue reappears.

My wild guess right now is that PHD and SGP are loosing connection based on

[08/12/17 01:39:24.057][DEBUG] [PHD2 Listener Thread] Failed to establish client connection to PHD2 using port 4400: No connection could be made because the target machine actively refused it 127.0.0.1:4400
[08/12/17 01:39:27.058][DEBUG] [PHD2 Listener Thread] Could not etablish a connection to PHD2! Aborting…
[08/12/17 01:39:27.058][DEBUG] [PHD2 Listener Thread] PHD2 - Could not get a status message in more than 1 minute, attempting to force reconnection…

I tested various combos of PHD and SGP. The issue reproduces with SGP2.6.0.24 and previous versions of the PHD, but not with 2.6.0.21.

I am attaching the log for last night (apologies but the run was kind of messy while trying to reproduce this)

Logs are here
https://drive.google.com/open?id=0B91c8lY19utvYmg4LWFGQ0Zrc1k

This feels like a user error, any help would be greatly appreciated

g