Archive Manager is cause the RPC service on my Exchange server to crash. (4267822)

The following is logged in the RCA logs that are saved to the following location:

C:\Program Files\Microsoft\Exchange Server\V15\Logging\RPC Client Access

2016-09-20T16:20:16.525Z,319,179305,/o=OrgName/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=xxxxxxxxxxxxxxxxxxxxxx-ArchiveMGR_ESM,,,6.0.8320.0,Classic,,,,ncacn_http,Client=MSExchangeRPC,,,,fault,00:00:00.0160000,,"Watson: [IndexOutOfRangeException] Index was outside the bounds of the array. at M.E.D.TextConverters.Internal.Format.FormatStore.TextStore.AddText(TextRunType runType, Char[] textBuffer, Int32 offset, Int32 count) at M.E.D.TextConverters.Internal.Format.FormatStore.AddText(Char[] textBuffer, Int32 offset, Int32 count) at M.E.D.TextConverters.Internal.Html.HtmlFormatConverter.OutputNonspace(TokenRun run) at M.E.D.TextConverters.Internal.Html.HtmlFormatConverter.ProcessText() at M.E.D.TextConverters.Internal.Html.HtmlFormatConverterWithEncapsulation.Process(HtmlTokenId tokenId) at M.E.D.TextConverters.ConverterStream.Read(Byte[] buffer, Int32 offset, Int32 count) at M.E.D.TextConverters.Internal.RtfCompressed.RtfCompressCommon.ReadMoreData() at M.E.D.TextConverters.Internal.RtfCompressed.RtfCompressConverter.Run() at M.E.D.TextConverters.ConverterStream.Read(Byte[] buffer, Int32 offset, Int32 count) at M.E.D.S.BodyReadStream.<>c__DisplayClassb.<Read>b__a() at M.E.D.S.ConvertUtils.<>c__DisplayClass1`1.<CallCtsWithReturnValue>b__0()