if i put a dummy on a bend thre isogen fails extraction.
If i delete dummies, isoGEN can extract the isos.

example: vertical dummy on vertical bend:
Imagine you have an horizontal pipe, from node 10 to 20. in node 20 there is bend and there line go up to node 30.
usually i insert a rigid (having same lenght from 30 to 20) called 20-100. in 100 i insert the a restraint (rest).

but due to isogen problem i tried to put the restraint (rest)on node 20 directly. BUT result changes and in isometric (by isogen) The rest is on 30 or 10, not in 20.

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30
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20---10----

how can i solve it?