After updating to the latest version, I suddenly have solid filled rectangles instead of characters or letters in some of the cards. It seems to be random (which character 'flips') and seems to get worse the longer the app is opened. When I close and reopen it's okay.
This makes it almost unusable, I can send you screenshot that will make it much easier to show, please fix this asap (can I revert to a previous version ?)
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