I cant open the flow I created in flow designer.

AnugrahR_George
Tera Contributor

Hi Community,

I’m facing a persistent issue where a specific Flow will not load in Flow Designer. I developed this in one PDI and it was working but then stopped loading the flow , I even migrated it to another pdi using an Update Set. While the Update Set committed successfully, the flow refuses to open (infinite loading/blank screen) in that pdi also.

What I’ve tried so far:

  • Ran cache.do multiple times.

  • Repaired the Flow Designer plugin.

4 REPLIES 4

GlideFather
Tera Patron

Hi @AnugrahR_George,

 

have you tried alternative browser or eventually incognito mode?

Does it happen with that one single flow or with some other as well?

 

EDIT: impacting just one or other users as well? If it is PDI, create a new account, assign it admin role and log for that account - what happens with that account?

 

EDIT2: with the impacted user, can you for example create/edit business rules? You can check this role, it's recently added as extended security meassure for develeopment: 

Screenshot 2026-04-20 at 09.18.35.png

 

_____
100 % GlideFather experience and 0 % generative AI

Dr Atul G- LNG
Tera Patron

Hi @AnugrahR_George 

Did you find any option to update the flow plugin? It looks like it’s stuck, as clearing the cache doesn’t seem to work. might be edit something in flow and save and try again.

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Ankur Bawiskar
Tera Patron

@AnugrahR_George 

could be because of version mismatch between Workflow studio plugin and Flow Designer plugin

check this KB which talks about this

Unable to Open Flows in Workflow Studio -> repair Workflow Studio Plugin which updates Flow Designer Plugin and then logout and login again

💡 If my response helped, please mark it as correct and close the thread 🔒— this helps future readers find the solution faster! 🙏

Regards,
Ankur
Certified Technical Architect  ||  10x ServiceNow MVP  ||  ServiceNow Community Leader

TharaS657398130
Mega Guru

The practical fix is to not keep troubleshooting that same flow, but instead recover it. Go to the working PDI (or wherever it last opened correctly), export the flow as XML (sys_hub_flow + related records) or duplicate it, and then re-import or recreate it in the target instance. If you don’t have a clean version, try opening related records like sys_hub_flow_version or actions used in the flow — sometimes one broken action causes the whole designer to hang, and removing/replacing that action fixes it. In many cases, though, the fastest solution is to rebuild the flow (copy steps manually) because once the definition is corrupted, Flow Designer won’t render it.