Storyline360 will not save because it says I don't have enough memory.

I'm also having the same issue -  "The project file could not be saved ... Not enough memory resources available to complete this operation". 

I am working on an i5, with 16 GB RAM, heaps of storage (its a new laptop), 64-bit operating system.  

I have lost hours of work - yes I do know that I should save more often but I am so focussed on the work and the deadlines that I don't always save as much as I probably should.  Given this issue I feel like I'd have to save every few minutes which is not practical.  

My IT department suggested that use End Task to close down Teams which I have done but it has not resolved the issue.

Two other people in this org are using Storyline and Teams without issue.  Could it be a problem with the latest version of Storyline - I am not sure if they have updated.