Algorithm: overlapping code lines and misplaced final horizontal line

I am currently adapting an article to the MDPI template and I have encountered some problems with the algorithm package. Code lines overlap and the last code line appears below the end horizontal line.
This is my main file:

documentclass[sensors,article,submit,moreauthors,pdftex,10pt,a4paper]{Definitions/mdpi}

usepackage{conf-simple}


firstpage{1} 


makeatletter 
 setcounter{page}{@firstpage} 
 makeatother pubvolume{xx} 
issuenum{1} articlenumber{1}
 pubyear{2018}
copyrightyear{2018} 
externaleditor{Academic Editor: name} 
history{Received: date; Accepted: date; Published: date} 
Title{Title} % Author Orchid ID: enter ID or remove command newcommand{orcidauthorA}{0000-0000-000-000X} % Add orcidA{} behind the author's name %newcommand{orcidauthorB}{0000-0000-000-000X} % Add orcidB{} behind the author's name

% Authors, for the paper (add full first names) Author{Firstname Lastname $^{1,dagger,ddagger}$orcidA{}, Firstname Lastname $^{1,ddagger}$ and Firstname Lastname $^{2,}$*}

% Authors, for metadata in PDF AuthorNames{Firstname Lastname, Firstname Lastname and Firstname Lastname}

% Affiliations / Addresses (Add [1] after address if there is only one affiliation.) address{%
    $^{1}$ quad Affiliation 1; [email protected]
    $^{2}$ quad Affiliation 2; [email protected]} corres{Correspondence: [email protected]; Tel.: +x-xxx-xxx-xxxx} firstnote{Current address: Affiliation 3}  secondnote{These authors contributed equally to this work.} begin{document} section{Hello}

begin{algorithm}[H]
    caption{: do something label{alg:1}}
    begin{algorithmic}[1] % The number tells where the line numbering should start
    Procedure {Do}{something $n$}
         If {connected}
           State send 
         Else 
           State store 
         EndIf
     EndProcedure 
    end{algorithmic} end{algorithm}


end{document}

My conf-simple.sty file:

ProvidesPackage{conf-simple}

usepackage{algorithm}
usepackage[noend]{algpseudocode} 
renewcommand{ALG@beginalgorithmic}{scriptsize}

This is my desired output:

If I change documentclass to documentclass{article} it is generated. However what I get with the mpdi template is:

I have found this question and I have tried to follow the proposed solution. However, adding setlengthbaselineskip{20pt} has no effect on my output. It only has effect if I comment my configuration line that sets the font size to scriptsize. Then, it solves the overlapping lines problem but not the problem with the final horizontal line. This is the output:

However, I would rather maintain the scriptsize.

Is there any way to obtain my desired output?

begin{algorithm}[H]
    caption{: do something label{alg:1}}
    begin{spacing}{2} %% you can adjust the amount of spacing here
    begin{algorithmic}[1]
    Procedure {Do}{something $n$}
         If {connected}
           State send 
         Else 
           State store 
         EndIf
     EndProcedure 
    end{algorithmic} 
    end{spacing} %% end of the spacing environment
end{algorithm}