Failure to extract the contents of the GOG installer for Syberia: The World Before

[vv221]

Using innoextract 1.9 (from Debian unstable repositories), the files extraction from setup_syberia_the_world_before_1.2.40404_(64bit)_(56798).exe triggers the following warning:

Warning: Could not read back "(…)/SyberiaTWB_Data/sharedassets38.assets" to calculate output checksum for multi-part file

After displaying this warning it seems the innoextract process is stuck, despite still consuming CPU cycles.

Running a comparison with the same game installed through WINE shows most files that should have been extracted after SyberiaTWB_Data/sharedassets38.assets are missing from the innoextract extraction. In addition the files SyberiaTWB_Data/sharedassets38.assets and SyberiaTWB_Data/sharedassets40.assets have a different size between the innoextract extraction and the WINE installation.

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This can not be reproduced with the free demo, this behaviour seems specific to the installer providing the full game.