[0.17.56] Saves load indefinitely

[Lithiemgod]

Started a new set of maps in .54 ; and I've had this issue persist into .55 and .56
I can start the game, play the map. if i exit and reload, the load progress screen stays up, memory usage slowly climbs past 24gb, and the log never proceeds much past 230 seconds. sometimes it stops in the checksumming, sometimes the second migration step, sometimes further. removing the traincaller and deadlock loader mods doesn't seem to make any difference.

Is there any user-available way to get more logs about the mod loading process?
the older maps on .53 are working fine, but if loaded into .54+, they do the same thing.