Storyline repeatedly crashes when recording videos

On several occasions my fellow Instructional Designer and myself have experienced Storyline CRASHING when recording a video. I have noticed that if I try to insert the video into an existing Scene, it will Crash. As a work around I have to create the video in a new scene, and then drag it to the scene I want it in. This is causing our manager concern. The rework to set up each video is extensive. The time is costing our client money. I have seen that the solution to this issue is to reinstall Storyline. I'm hesitant to do this because I have spent a great deal of time creating custom theme colors and I don't want to have to do that again from scratch.
As a work around when recording videos I have tried closing most other programs, this doesn't seem to help.
I have tried restarting my computer, which is a hassle as then I have to reopen all the other programs and reset the content of the video file. We are working on a Windows 10 platform. Anyone have any suggestions?
Jen