Uploading from Sketch - "An error occured"

[TomMcck]

Trying to upload to miro ending with "An error occured" "There was an error during syncing. Please retry".
Sketch 87.1 (and beta 88). I've gone through multiple artboards and it seems to fail when there is bigger bitmap. Not bigger resolution but bigger size in artboard.
It worked before (I'm not sure if it was the same version of the Sketch, but I think it was) with the exact same artboards.

[nikobe]

Same here on 87.1

I was doing a test upload and can upload smaller artboards at 1x but if I click 2x or they are over a certain size they fail with the above error.

[membranophonist]

Sketch 89 (147688)
Miro plugin 1.6.5

I'm also unable to sync artboards that rasterize to large bitmaps. This is quite frustrating because there is no problem dragging the export preview thumbnail from Sketch to the Miro board, but that means that the image can't be synced after the artboard is updated in Sketch.