Bug in Photoshop (windows version)

Hello Experts

i have found a bug in photoshop (Windows Version)

i have tried it in windows 7 & 10

and in photoshop CS6 and CC 2014 and CC 2015 and CC 2018

and the same problem happened in all these versions

the problem is when you do these steps

1. draw an ellipse

2. draw a waves over the ellipse with the exclude overlapping shapes (you can find waves at custom shape tool - chose nature present - then you can find the waves)

3. use the text tool and try to write in the wave paths (sometimes from the first time photoshop crash, and sometimes after you type two text)

please see the images below

can anybody try it and tell me