The steps are in the video, the problem may occur in multiple trees across multiple maps so is better to be tested. The character can’t climb off the branch animation after using throwable items.
It seems the inconsistency is created by the auto-switching animation from different weapons to Plasma Caster (shoulder caster), it being default as you climb trees for predkour.
I am in a big tree near the cabin (as it can be seen in the video). The HUD and everything aside movement was blocked.
Note: it might be connected with other smart disc related issues reported by users.
Link to the video: