Everytime I try to make an existing world a realm it will always say "level export failed" this has happened for the last 2 months and I'm seriously fed up with it.

It only happens on switch, the reason I'm making a realm is to move my 2 worlds (35mb and 299mb) to my phone because my joycons broke, honestly switch is just a big joke at this point.

And the last Minecraft updates; ever since 1.16 have reaked havoc on my switch.