Steam (PC) v1.1b-1237
When catching an undiscovered or higher quality bug/fish and opening the inventory before the "you got this new thing" UI is dismissed, and touching the new critter to move it in the inventory, will get the critter stuck in your cursor unable to be put down. It looks like the UI is trying to close, but because the target is not technically in your inventory, when you click to place the pop-up reacts as if you attempted to close it, and because the critter is being held in purgatory by your cursor, it re-opens the new catch UI when you click to place. Player ends up stuck in their inventory and the only fix is to force-close the game. I'll get a screenshot of it in the morning.
#Caught critter UI can soft-lock Inventory
dull fractal
wind sun
Hi hi @dull fractal, thank you for reaching out to us, and so sorry for the inconvenience!
We have received similar reports regarding this soft-lock problem, and the team is currently investigating it.
As a temporary workaround, it might help to wait until the catch popup fully appears before opening your inventory. As opening it too soon after catching an insect/critter could cause the issue.
TYSM! 
dull fractal
I know, I nooww. I tell myself that but I move so fast and I want to organize everything and then poof: I have to restart the day.
You should also know that star quality of crop and animal products get rerolled on the day reset, as well as how many replant seeds you get from harvests. That doesn't seem like it's intended.