Abyss doesn't spawn / work in map.

So this happens from time to time for me and it is annoying to spend the little currency I have to get ripped off like this.

Last map not 1 but 2 abysses doesn't spawn mobs from the "hole".
And I cleared the whole map as you can see 0 monsters left. And I ran through the whole map like 5 times looking for anything but there was nothing.

So please fix this.


https://imgur.com/a/8Pcm8ZM

yeah happened to me many times...its been like this for like a MONTH