Is this issue reproduced if you open Visio 2019 directly?
As we are mainly responsible for general issues of Office desktop applications, if this issue occur with opening Visio via automation with any programming language that supports, I would suggest you ask this question on the forums below.
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Office developer community
Besides, please go to Visio > File > Feedback > Click the icon besides "I don't like something", then raise this issue. You may also upload the related screenshots, this behaivor would let Microsoft developers hear your voice.
Thanks for your understanding.
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