# Graph Stuck after a few vectors

**URL:** <https://www.ruby-forum.com/t/graph-stuck-after-a-few-vectors/242581>\
**Category:** GNU Radio\
**Created:** [July 4, 2015, 3:16pm UTC](https://www.ruby-forum.com/t/graph-stuck-after-a-few-vectors/242581 "2015-07-04T15:16:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\
**Post date:** [July 4, 2015, 3:16pm UTC](https://www.ruby-forum.com/t/graph-stuck-after-a-few-vectors/242581/1 "2015-07-04T15:16:58Z")

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I have attached a screenshot of my design.  
when I start simulating it stuck and only plot a few vectors of data.  
I think it’s becasue of variable time shift block, it’s a hierarchy  
block,  
when I connect a constant source to i’ts float input the design works  
perfectly but when I connect output of short to float it does not work,  
I think it’s becasue Argmax block produces one output for every vector  
but  
the variable time shift needs that output constantly.  
how can i fix this?

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**Author:** ![Mohammad\_Ghasemi](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/919ad9/32.png) [@Mohammad\_Ghasemi](https://www.ruby-forum.com/u/Mohammad_Ghasemi)\
**Post date:** [July 4, 2015, 4:00pm UTC](https://www.ruby-forum.com/t/graph-stuck-after-a-few-vectors/242581/2 "2015-07-04T16:00:12Z")

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Hi Mohammad,

to try, you could just use the repeat block.

Best regards,  
Marcus