啰 vs. 囉 in Old Texts
This may be a failure of editing. 啰 is actually discussed in the 1986 Jianhuazi zong biao. According to the 1986 zong biao, 罗 was included in the first list of simplified characters, but 囉 was not. The 1986 zong biao deletes 囉, and makes 啰 its official replacement "by analogy". Your dictionary seems to fall right in this period. Could be the entry you cite with 囉 was written before the 1986 list came out, and the entry with 啰 was done after. Or perhaps both were originally 囉 and in the editing they did after completing the dictionary, they missed the one entry.