Power BI Dax - Trying to break circular dependency after one attempt - powerbi

Question

I am trying to figure out ancestor bloodline in data I have. I feel like there is something I am missing to make this work. This data wouldn't change so not sure if I am missing something I can write in the power query editor when loading / refreshing the data.
While technically it is circular in fields it never going to return the same row it is currently in and the first generation is hard number making a starting point. I only want to reference the mother and father to calculate the child's bloodline. The first generation is a basic IF() statement. Below is as far as I can get before hitting the circular dependency error. I have tried a few things to break it thinking its going to loop.
Logic is:
Each blood is 100% for 1st generations based on their birthplace then it is ((mother blood + father blood) / 2) for each generation after that. I found I can use PATHITEM() to isolate the type of blood but errors with a circular dependency. (This is where I can't figure out how to reference the mother / father to do the calculation.) If I take this part out I get the image below working for 1st generation and correct mother / father for second generation.
Asisa Blood =
VAR current_id = 'Sheet1'[ID]
VAR current_gen = 'Sheet1'[Generation]
VAR current_blood = 'Sheet1'[Birthplace]
VAR current_mother_blood =
PATHITEM(
CALCULATE(
DISTINCT('Sheet1'[Mother's Blood Mix]),
FILTER(
ALLNOBLANKROW('Sheet1'[ID]),
'Sheet1'[ID] = current_id
),
REMOVEFILTERS('Sheet1')
),1,INTEGER)
VAR current_father_blood =
PATHITEM(
CALCULATE(
DISTINCT('Sheet1'[Father's Blood Mix]),
FILTER(
ALLNOBLANKROW('Sheet1'[ID]),
'Sheet1'[ID] = current_id
),
REMOVEFILTERS('Sheet1')
),1,INTEGER)
VAR gen1_value = 100
RETURN
IF(AND(LOWER(current_gen) = "1",LOWER(current_blood) = "asisa"),
gen1_value,
((current_mother_blood + current_father_blood)/2)
)
Blood Mix concatenates the four blood types into one field for easy look up in next step.
Blood mix =
VAR current__id = 'Sheet1'[ID]
VAR current_blood_a = 'Sheet1'[Asisa Blood]
VAR current_blood_b = 'Sheet1'[Africa Blood]
VAR current_blood_c = 'Sheet1'[Europe Blood]
VAR current_blood_d = 'Sheet1'[North America Blood]
RETURN
current_blood_a & "|" & current_blood_b & "|" & current_blood_c & "|" & current_blood_d
Mother and Father are lookups on blood mix with mother or father ids
Mother's Blood Mix =
VAR current_id = 'Sheet1'[ID]
VAR current_gen = 'Sheet1'[Generation]
VAR gen_value = 'Sheet1'[Blood mix]
VAR current_parent_id =
IF(LOWER(current_gen) = "1",current_id,'Sheet1'[Mother ID])
VAR result =
CALCULATE(
DISTINCT('Sheet1'[Blood mix]),
FILTER(
ALLNOBLANKROW('Sheet1'[ID]),
'Sheet1'[ID] = current_parent_id
),
REMOVEFILTERS('Sheet1')
)
RETURN
result

Answer 1

You can try to do this way (rather high resource consuming):
NEW COLUMN:
heritage_Father = PATH(Blood[ID],(Blood[FatherID]))
heritage_Mother = PATH(Blood[ID],(Blood[MotherID]))
Mancestor = LOOKUPVALUE(Blood[heritage_Mother],Blood[ID],Blood[FatherID]) &"|"& Blood[heritage_Mother]
Fancestor = LOOKUPVALUE(Blood[heritage_Father],Blood[ID],Blood[MotherID])&"|"&Blood[heritage_Father]
NEW MEASURE:
ASIA_check =
VAR Table0 =
SELECTCOLUMNS(
ADDCOLUMNS (
GENERATE (
ROW ( "Text", "0"&SELECTEDVALUE(Blood[Fancestor]) ),
VAR TokenCount =
PATHLENGTH ( [Text] )+1
RETURN
GENERATESERIES ( 1, TokenCount )
),
"Word", PATHITEM ( [Text], [Value] )
),
"Word",VALUE([Word]))
VAR Table1 =
SELECTCOLUMNS(
ADDCOLUMNS (
GENERATE (
ROW ( "Text", "0"&SELECTEDVALUE(Blood[Mancestor]) ),
VAR TokenCount =
PATHLENGTH ( [Text] )+1
RETURN
GENERATESERIES ( 1, TokenCount )
),
"Word", PATHITEM ( [Text], [Value] )
),
"Word",VALUE([Word]))
RETURN
DIVIDe(
if(SELECTEDVALUE(Blood[Generation]) <> 1,
calculate(sum(Blood[AsiaBlood]), FILTER(ALL(Blood), Blood[ID] in Table0 || Blood[ID] in Table1)),0
),
(POWER(2, SELECTEDVALUE(Blood[Generation])-1)))
AFRICA_check =
VAR Table0 =
SELECTCOLUMNS(
ADDCOLUMNS (
GENERATE (
ROW ( "Text", "0"&SELECTEDVALUE(Blood[Fancestor]) ),
VAR TokenCount =
PATHLENGTH ( [Text] )+1
RETURN
GENERATESERIES ( 1, TokenCount )
),
"Word", PATHITEM ( [Text], [Value] )
),
"Word",VALUE([Word]))
VAR Table1 =
SELECTCOLUMNS(
ADDCOLUMNS (
GENERATE (
ROW ( "Text", "0"&SELECTEDVALUE(Blood[Mancestor]) ),
VAR TokenCount =
PATHLENGTH ( [Text] )+1
RETURN
GENERATESERIES ( 1, TokenCount )
),
"Word", PATHITEM ( [Text], [Value] )
),
"Word",VALUE([Word]))
RETURN
DIVIDe(
if(SELECTEDVALUE(Blood[Generation]) <> 1,
calculate(sum(Blood[AfricaBlood]), FILTER(ALL(Blood), Blood[ID] in Table0 || Blood[ID] in Table1)),0
),
(POWER(2, SELECTEDVALUE(Blood[Generation])-1)))