A terrifying one that can shake this game BUG It has appeared again

Hello GGG The staff:
Please take a look at this BUG Composition:
Video address 1 https://www.bilibili.com/video/BV1egEVzZEfJ/?spm_id_from=333.337.search -card.all.click&vd_source=7b3838b16e142babfa64ff959c338ec0
Video address 2 https://www.bilibili.com/video/BV1AdEAz7EDQ/?spm_id_from=333.337.search -card.all.click&vd_source=7b3838b16e142babfa64ff959c338ec0

Is there still balance to speak of?

Can damage be stacked infinitely? Your game testers are too incompetent.