Hi, consider the following example file https://pastebin.com/73W7EbCa
This file has a single very long line with one math item at the end. Do the following: 1. generate the preview with C-c C-p C-p 2. move point to the "x" in the math block, change it to "y" and leave point within the math block 3. execute C-c C-p C-p again One should get the message "End of buffer" without the preview being regenerated. AFAICT the reason is that in this case only the snippet $x$ without the text preceding the snippet in the line is copied to the temporary file for generating the preview. However line 2103 in tex-buf.el (that is the line with "(forward-char (cdr line-col))") tries to move point to the *original* column of the snippet. This number is so large that "(forward-char ...)" will actually reach the end of the buffer and the error occurs. However, I would say the the column offset is just wrong. Either subtract the length of the preceding text (in the original buffer) from the column number or copy the preceding text to the temp buffer as well. I hope my description is clear, if not, please ask ;) Best regards, Frank _______________________________________________ bug-auctex mailing list bug-auctex@gnu.org https://lists.gnu.org/mailman/listinfo/bug-auctex