Strikethrough not working

On an iPhone XR, fully updated, no betas.
Markdown document, edit mode
BUI pulldown, select strikethrough, doesn’t do anything. Selected text or just a cursor, no result

On iPad, also fully updated, no betas
Markdown document, edit mode
Selected text or at cursor, tapping strikethrough symbol inserts proper text.

All other formatting selections seem to work properly on both iOS and iPadOS.

Thanks for letting us know, it appears to an issue only on compact toolbar layouts. We will include a fix for the next update.