I’ve noticed a (possibly related) problem with the last few versions, including this one. I am using iPad OS 13.3 on an ipad7. Seems to be a memory leak type of thing. Crashes started a lot more around MC v1.13, with 1.14.1 not starting at all, which we are aware.
Anytime I quit Minecraft, I have to completely quit it (not suspended in the background) in order to start again without crashing. However, if I completely quit MC and do a soft reset on my iPad (power and home buttons held through a restart and back to a full shutdown), then reboot the iPad and double click on home, Minecraft shows to still be running in the background - even though I completely quit it before doing a reset.
Confirmed on Bedrock 1.21.44 on iPad. I have had individual inventory items disappear randomly. Have not been able to track why. I wonder if it is related to throwing inventory items out while the inventory window is open. The proper items seem to empty when I do that, but it does seem like other items in inventory disappear later in game. I cannot track this to any other actions or crashes. Cannot reproduce at will yet.