Hi Olafbezerker,
Thank you for reporting this issue. This is one the team are aware of and I have a Known Issue post for it here: [Known Issue][PS4/XB1] Binoculars not working as intented
The issue seems to manifest in a few different ways for players -thank you for letting me know what you experienced when this issue occurred for you. Can you confirm for me if you were able to zoom with the binoculars or was that function bugged too in your save?
Please also let me know if when using binoculars again in the save, if the issue manifests in the same way or if it’s different each time.
Thank you again.