A320 glide slope issue in VVBM

In VVBM RW 09, there is an issue with the glide slope signal fluctuating. The A320 Descent Energy Management book is available here: https://www.amazon.com/Practical-Desc... The generic jet version of the Descent Energy book (Jet Aircraft Descent Management) is available here: https://www.amazon.com/dp/B0CJRH8YF6/... The Radio Telephony book is available here: https://www.amazon.com/Practical-Airl...