random strings crescendo issue

On using a crescendo on string instruments only, there is a chance, that on playback, the loudness of the string instrument aggressively increases

Let's say that I set two notes on two bars on a cello and put a crescendo on the second bar. Normally there should be a gradual increase in loudness for the cello starting from the second bar - the bug causes it to tune up in loudness suddenly and continue increasing