New limitation? 'This comment can't be saved because it's formatted content is too large'

Yesterday we started seeing a new message when making comments/updates in requests and projects.  The message we’re getting is ‘This comment can’t be saved because it’s formatted content is too large’.  

Is anyone else getting this message?

We know this is new because we use the same script with some clients, and the script used to be able to be pasted in full.  Now we have to break it into two chunks.

Why are they adding random limitations like this off-schedule?  We’re just trying to work, and this doesn’t help at all.