topic Re: Data panel is causing huge performance degredation in Fusion Support Forum

Data panel is causing huge performance degredation

bentwookie — Sun, 15 Feb 2026 02:02:45 GMT

Fusion 2606.1.36 x86_64
Active Plan: Subscription
Windows 11 Pro 25H2 (26200.7840)

Sample document: https://a360.co/4ay4xDg

While working on a project today, I found that performance would get worse and worse until I restarted the app. I could go around 15 minutes before Fusion became unusable. Simple elements, like tooltips, took many seconds to draw. You could watch the images in them load. After five or six cycles of that, I sat down and found reproducible steps:

1) Make a very simple document. The sample I've shared is an extruded 10mm square.

2) Save it to a project that has a few items in it. The one shown below has maybe 20 or 30, although I first saw this happen in a directory with maybe 8.

3) Make sure the data panel is open to where your file is saving

4) Change the heigh to the extrusion and save it again.

5) Do this five or six times

Eventually, the app becomes so slow it starts to trigger all the usual "too much compute" nonsense. The component browser turns black. The %$&@ app window backgrounds itself.

The only way to improve performance is to restart the app.

Re: Data panel is causing huge performance degredation

bentwookie — Sun, 15 Feb 2026 02:03:32 GMT

Watch in this video how slow it all gets after only a few saves. You can watch the menu chrome draw, and yet the system is using hardly any resources (CPU/GPU).

(view in My Videos)

Re: Data panel is causing huge performance degredation

raymondxu — Sun, 15 Feb 2026 03:26:28 GMT

Could you dump Fusion logs and post here?

Re: Data panel is causing huge performance degredation

bentwookie — Sun, 15 Feb 2026 04:55:26 GMT

Messaged.

Re: Data panel is causing huge performance degredation

raymondxu — Wed, 18 Feb 2026 00:11:19 GMT

Thank you @bentwookie. It did show some suspicious 404 error there. I need ask team to take a look what happen there. But one thing I noticed is, it seems your disk only has ~3% free. I am not 100% sure this is related, but you might try to free move space and test whether this is better.

Re: Data panel is causing huge performance degredation

bentwookie — Wed, 18 Feb 2026 19:48:34 GMT

Ha. I hadn't noticed that drive had gotten so tight. I cleaned house, but the problem remains.

Re: Data panel is causing huge performance degredation

bentwookie — Wed, 18 Feb 2026 19:52:55 GMT

I sent you new logs with a cleaned up drive.

Re: Data panel is causing huge performance degredation

lauri_barnhart — Fri, 20 Feb 2026 20:59:33 GMT

Hi @bentwookie,

I wanted to check in and see if you still needed assistance, or if you found a solution to your question already? Let us know if you need further assistance by providing an update or if you have found a solution, please share it with the community so other members who may have the same question could learn from your experience.

All the best,

Lauri | Community Manager

Re: Data panel is causing huge performance degredation

bentwookie — Fri, 20 Feb 2026 22:30:24 GMT

No, it still happens. I've had to forgo using my PC because of it.

Re: Data panel is causing huge performance degredation

raymondxu — Mon, 23 Feb 2026 01:36:34 GMT

I forwarded the problem to my team and they will be investigating this problem. We will come back if any update.

Re: Data panel is causing huge performance degredation

LishuangLu — Mon, 23 Feb 2026 22:04:50 GMT

Hi @bentwookie , thanks for reporting!

To better investigate the problem, could you please also record a performance problem report and share with us?

You can access the tool through Fusion Help→ Support and Diagnostics→ Report Performance Issue. Please just record the workflows with slowness into the steps.

We will further investigate on the root cause when the report is received.

Thanks for your continued support!

Thanks,

Lisa

Re: Data panel is causing huge performance degredation

bentwookie — Tue, 24 Feb 2026 02:04:30 GMT

I'm unable to reproduce this problem on the Insider build Rajkumar mentioned in a different thread.

Re: Data panel is causing huge performance degredation

LishuangLu — Tue, 24 Feb 2026 05:06:20 GMT

Thanks @bentwookie for the update!

It's good to know that the problem doesn't happen with your insider build. Please feel free to let us know if you have other performance issues/questions.

Thanks,

Lisa

Re: Data panel is causing huge performance degredation

jason — Wed, 25 Feb 2026 17:09:23 GMT

I am having the same issue, across two different PCs both on Win11.

100% unusable.

Re: Data panel is causing huge performance degredation

RajkumarIlanchelian — Wed, 25 Feb 2026 17:22:06 GMT

@jason We have an update coming likely next week that could help with this problem.

Re: Data panel is causing huge performance degredation

jason — Wed, 25 Feb 2026 17:34:53 GMT

That could help, but there is no NOW solution?

Can I roll back two updates ago, when it worked fine?

Not only can I not use the software I pay for, if I try to use it in the background (bc of how long it takes for any one task) it commandeers the RAM so I can't use the entire PC.

Re: Data panel is causing huge performance degredation

RajkumarIlanchelian — Wed, 25 Feb 2026 17:41:17 GMT

@jason Unfortunately we do not have a roll back option. Would you be open to getting our Insider build? Being a paying customer you do have access to our product support team.

Re: Data panel is causing huge performance degredation

jason — Wed, 25 Feb 2026 17:44:21 GMT

I don't want to have to pay to be your Beta tester.

If that means I can use the software I pay for now, sure.

Re: Data panel is causing huge performance degredation

RajkumarIlanchelian — Wed, 25 Feb 2026 18:16:55 GMT

@jason That is fair.

Do you switch between hubs a lot? Also, do you use the Home tab rather than the data panel?

Re: Data panel is causing huge performance degredation

jason — Wed, 25 Feb 2026 19:25:44 GMT

I switch between hubs maybe once or twice a week, not daily.

**EDIT** My owned Hub works ok, the Hub I'm a member/admin of (that I mainly work from) is unusable.**
I only use the data panel.

Have sent in multiple submissions (report performance logs).

Thanks.