Glitches, pasting, ghosting,

Newbie posting. Have 30 hours into Lectora/Inquisiq.1. I'm finding lots of glitches with pasting text (kicked out of Lectora), deleting images and they don't disappear, etc. are these known issues?2. I made a simple list of three items and placed bullet image before each line. Did NOT use built in bullet formatting. Changed bullets and find one or more of the old bullets remain. I delete it in editor, appears it is gone, go into preview mode, it is there again. Back to edit mode, it is there again. Delete and go through the same process and can't remove the bullet. Even restarted app. I see in the Object tree on left that the new bullets show up as images. The problem child does not show up. If I select the TEXT box in the left tree, the text box AND offending bullet are highlighted in the editing area. It appears the bullet somehow attach to instead of being embedded inside the text box.All help is appreciated.

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