What might cause the weird lead in predictions in some points?

https://preview.redd.it/gi0wfcvv37zc1.png?width=1163&format=png&auto=webp&s=03c48ca1a898b98d946eaefde2792227afb5529f

I have made linear regression based model to predict value based on multiple variables. In some points it is really accurate but some points there is weird lead. Does anyone have idea what might cause this?

datascience linear linear regression multiple regression value variables