I wasnt able to replicate one of them, the other i was able to replicate it at least once.
First, one fo zyras seeds didnt bloom after using a skill, but the system recognized it as if it was a plant, so the minion wave kept attacking the seed unable to kill anything and just stacking in the lane until i left the area and the seed dissapeared due to the max number of seeds. Wasnt able to replicate it.
The second one was zyra being able to cast her Q while supressed by malzahar ult. I was able to replicate this.