UPDATE: We have now released Update 8 for both HitFilm Pro & Express 2017 which contains a fix for the issue detailed below. You can download the latest version from the prompt when launching the software or from your account here.
Additionally, Nvidia has released a new driver that some users have reported also fixes the issue, so please install the latest drivers for your GPU.
If you have a machine with multiple GPU's, one being an Nvidia and the other being an Intel HD, please read on.
We are aware of an issue being faced by users where they are unable to interact with the HitFilm user interface correctly when running the latest Nvidia drivers. This results in not being able to create projects, change project settings or even see the export queue.
We are currently working with Nvidia to solve this issue, but for the mean time users are asked to rollback their Nvidia drivers to 382.05, which was released on the 1st of May 2017.
You can search for the driver for your system here.
NOTE: Slightly newer drivers may work for you, but this one has been confirmed to work for everyone affected.
How to Rollback a Driver:
Open Device Manager
Inside Display Adaptors, right-click the Nvidia Device (i.e. GTX 960M) for which you want to roll back to the previous version of the driver, and then click Properties.
Click the Drivers tab.
Click Roll Back Driver.
In the Driver Package Rollback dialog box, click Yes.
Alternatively, you can just remove the current installed Nvidia driver from your Windows Control Panel. The driver will be listed as Nvidia Graphics Driver 3xx.xx, just follow the instructions as you would for any removal of software from your machine.
NOTE: This only affects laptop users, those with desktop machines are unaffected by this, so continue to update your drivers when new ones become available.
Please accept our apologies for the inconvenience caused, I assure you that Nvidia & ourselves are doing everything we can to get this issue resolved as quickly as possible.