@MAB-Tech There is too little information to assume anything.
Please answer the question, or better yet, attach the project that is causing the problem to the forum's private messages.
@fox i removed "parse line" action that is immediately after project start AND the crash changed to missing variable error. will look more into it. basically i used a keyword that had no value, or its only value was a word assigned by "parse line" before, that was a temporary value anyway.