Storyline builds causing issues in saba?

Are there any saba users seeing issues with Storyline build updates?

what we are seeing is we load a SL course in saba. A user starts the course on Monday.  We make a small typo change to the course on Tuesday and load it.  The user comes back to the course on Thursday to continue it and the course will not load for them.

I was wondering if it had to do with a SL build update taking place between the time the course was first released and when the course update was made.

I understand this is more of a saba question. But trying to see if others are experiencing the same issue. thank you