Guild statue donation bugged

**Platform, device version and operating system: **


**Screenshot or image:

What you were expecting to happen, and what actually happened:

Blue statue said Task 11 was 517.,000/550,000. I´ve dumped 35k and instead of completing the task it actually scaled back to 512,000/550,000

How often does this happen? When did it begin happening?
First time I´ve seen it. Rest of guild members didnt have issues today

Steps to make it happen again
Probably dumping more money in it, but I am not trying that before I know what´s going on lol