Strange issue with text sent to group chat

Hello, i encountered strange issue with message sent to the group chat. On the sender’s device two words from the end of the message are missing, however in the preview pane on the group chat they are seen. Some of the group chat members see the full message, some see the stripped version.
Delta Chat version 2.35.0 on IOS. Self hosted chatmail server.
Any suggestions how to fix this issue?

Have you checked whether this is specific to iOS? Have you tried sending a message with the same text to another chat, e.g. “saved messages”, or sending it again into the same chat? Do you mind sharing the text of the message?