Strut stuck on vessel after decouple

[Dominiquini]

I'm testing the build-in vessel "Acapello", and when I'm trying to decouple de upper stage, the struts gets stuck in the ship, not allowing me to move:

https://imgur.com/a/QwgBI7W

* Sometime I was able to set me free, rapidly activating and deactivating time warp!

* I'm playing stock with both DLCs installed.

* Windows 10 x64 with KSP 1.11.2

[LHACK4142]

I've had this problem as well. My best solution is to use EVA construction to get put the struts on the Saturn's last stage before separating.