[0.17.47] Crash when working on train tracks

[gHoST INFERNO]

Hey,

Factorio just crashed twice for me when doing similar tasks, notably while working on train tracks which are being used.
The first time it happened while I was manually mining a train track that was likely part of the planned route for a number of trains (i.e. they had to find a different route).
The second time it was the opposite, it happened when I placed a blueprint which, among other things, placed train tracks that would have given trains a new option to choose (once actually built by robots).

So just guessing it could be related to trains having to find a new path...

Attached the log files of the two crashes (previous is for the first one, current for the second one).

Thanks so much for your help!

EDIT: removed attachments

[boskid]

Duplicate 71724 (for previous.log) and 71717 (for current.log). Both issues are fixed and pending for release

[gHoST INFERNO]

Sweet thanks!