Find your set options using your query

SELECT plan_handle, usecounts, pvt.set_options,text

FROM (

SELECT plan_handle, usecounts, epa.attribute, epa.value ,text

FROM sys.dm_exec_cached_plans

OUTER APPLY sys.dm_exec_plan_attributes(plan_handle) AS epa

CROSS APPLY sys.dm_exec_sql_text(plan_handle) a

WHERE cacheobjtype = 'Compiled Plan' and a.text like '%MYQUERYTEXT%') AS ecpa

PIVOT (MAX(ecpa.value) FOR ecpa.attribute IN ("set_options", "objectid")) AS pvt

THEN plug the setoptions for your 2 queries into the below and see what set options differ.

declare @set_options int = 4347

if ((1 & @set_options) = 1) print 'ANSI_PADDING'

if ((4 & @set_options) = 4) print 'FORCEPLAN'

if ((8 & @set_options) = 8) print 'CONCAT_NULL_YIELDS_NULL'

if ((16 & @set_options) = 16) print 'ANSI_WARNINGS'

if ((32 & @set_options) = 32) print 'ANSI_NULLS'

if ((64 & @set_options) = 64) print 'QUOTED_IDENTIFIER'

if ((128 & @set_options) = 128) print 'ANSI_NULL_DFLT_ON'

if ((256 & @set_options) = 256) print 'ANSI_NULL_DFLT_OFF'

if ((512 & @set_options) = 512) print 'NoBrowseTable'

if ((4096 & @set_options) = 4096) print 'ARITH_ABORT'

if ((8192 & @set_options) = 8192) print 'NUMERIC_ROUNDABORT'

if ((16384 & @set_options) = 16384) print 'DATEFIRST'

if ((32768 & @set_options) = 32768) print 'DATEFORMAT'

if ((65536 & @set_options) = 65536) print 'LanguageID'