Alseid of Life's Bounty sacrifice cost is not triggering upon activation as expected. Within five turns, my arena opponent had the following cards on the field under their control:

3x Alseid of Life's Bounty (one with summoning sickness)
1x All That Glitters (attached to 1 Alseid)
1x Sentinel's Eyes (attached to the same Alseid)
1X Season of Growth

I saw the single enchanted Alseid go from a 1/1 to a 2/2 (with Sentinel's Eyes) to a 9/9 after playing a single All That Glitters on the same Alseid. I could see 8/8 being the case (+3/3 for 3 Enchant Creatures, +3/3 Enchantments/Aura in play, +1/1 for the single Sentinel's Eyes = +7/+7) but +9/+9 didn't add up.

When the aura'ed up Alseid attacked, and I blocked with Questing Beast, the Alseid player triggered their protection from a color of their choice, paid 1 mana, yet didn't pay the sacrifice cost for any of the three Alseid of Life's Bounty in play. The attack went through yet the protection ability still resolved and kept the enchanted Alseid from dying to the Questing Beast (which has deathtouch). Assuming the Beast's deathtouch isn't color based, should this have happened?

Can you look into this an check out for bugs on this card combo?