In the Develop module, check the edit history to see if a preset was applied during the import.
If yes, you can undo it.
If yes, check your import settings to make sure that the "develop settings" are set to "none".
No presets were applied on import and I see no preset applied in the edit history. Just says import with time and date.
Does the tint look correct to your eyes? If so, it could be the "auto-WB" results, assuming a random selection of lighting conditions.
I do notice the tint changes when the WB is changed. It's a toss up if they look ok. Some do and some not as good. Thanks for your help