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Are you using Developer Mode or made changes in it?
No
Have you disabled/removed all your mods and addons? If the issue still occurs with no mods and add-ons, please continue to report your issue. If not, please move this post to the Community Support section.
Yes
Brief description of the issue:
Few days ago, quasi all (but still some isolated ones) autogen trees disappeared for example in Switzerland or England but not in France.