The problem with kernel 5.5.5 is unrelated to the fix in this thread. I started a relevant thread regarding this problem here:
https://forum.parallels.com/threads/kernel-5-5-5-breaks-parallels-tools-15-1-2-47123.349299/
https://forum.parallels.com/threads/kernel-5-5-5-breaks-parallels-tools-15-1-2-47123.349299/