Cannot Upload experimental worlds to realms

I am the owner of a realm(Chaos United) 

We have started our season 4 and as usual, tried to upload a world template . The template had experimental gameplay switched on, as well as education mode on. The world has failed to upload despite many tries. I have tried uploading from my PC , my android phone and have even sent the world download to a co owner living in the United States  who plays windows 10 edition too, but inspire of all our efforts we have not been able to upload the world . The world either doesn't srop uploading or just shows a "Failed" error . 

Please look into this 

Thanks in advance 

Kushfighter22