How to Disable Auto-Execution of Animate Preview on Schematic Open to Fix Large Design Laghttps://community.cadence.com/cadence_technology_forums/f/custom-ic-design/65923/how-to-disable-auto-execution-of-animate-preview-on-schematic-open-to-fix-large-design-lagHi everyone, I&#39;m encountering an issue where Animate Preview automatically runs immediately every time I open a schematic in Virtuoso . This causes severe lag and slow loading when working with large, complex circuits, as the preview process consumesen-USTelligent Community 12RE: How to Disable Auto-Execution of Animate Preview on Schematic Open to Fix Large Design Laghttps://community.cadence.com/thread/1408278?ContentTypeID=1Thu, 16 Apr 2026 02:37:08 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:5dbf3a97-755c-4312-8bdc-807a331330fbHopken<div> <div>Hi Andrew,</div> <div></div> <div>Thank you so much for your prompt and clear reply! The issue has been perfectly resolved with the environment variable you provided. I really appreciate your expert guidance and support！</div> <div></div> <div></div> </div> <div>Best regards,</div> <div>JH202604155337</div><div style="clear:both;"></div>RE: How to Disable Auto-Execution of Animate Preview on Schematic Open to Fix Large Design Laghttps://community.cadence.com/thread/1408273?ContentTypeID=1Wed, 15 Apr 2026 11:06:27 GMT75bcbcf9-38a3-4e2e-b84b-26c8c46a9500:258a2734-e885-4bde-a13d-9094561c07ecAndrew Grantham<p>Hi,</p> <p>Animate as default automatically runs on schematics which have less that 100 instances.&nbsp; This can be changed using the env var :&nbsp;</p> <p>PULSIC_ANIMATE_AUTOMATIC_RUN_MAX_INSTANCE_COUNT</p> <p>If you set this to 0, then Animate will only run when you press the play button on the Animate Assistant.</p> <p>Best Regards,</p> <p>Andrew</p><div style="clear:both;"></div>