It seems that this happens when (the computer's memory is less* and) the document has large number of formulas [1].
A workaround would be to increase the cache size of OLE objects, i.e. go to Tools > Advanced > Open Expert Configuration and increase the value of "org.openoffice.Office.Common/Cache/Writer/Writer" from 20 (default) to a value of 600 [1, 2].
To be sure, restart LO writer after saving the above change.
*I increased my laptop's RAM from 3GB to 6GB and, in spite of this, the problem persisted. So I am unsure as to how much RAM is "less" RAM. Thankfully the workaround seems to work.
It seems that this happens when (the computer's memory is less* and) the document has large number of formulas [1].
A workaround would be to increase the cache size of OLE objects, i.e. go to Tools > Advanced > Open Expert Configuration and increase the value of "org.openoffice.Office.Common/Cache/Writer/Writer" from 20 (default) to a value of 600 [1, 2].
To be sure, restart LO writer after saving the above change.
References
*I increased my laptop's RAM from 3GB to 6GB and, in spite of this, the problem persisted. So I am unsure as to how much RAM is "less" RAM. Thankfully the workaround seems to work.